?trapezoid

trapezoid發(fā)音

英：[?tr?p?z??d]　　美：[?tr?p??z??d]

英：　　美：

trapezoid中文意思翻譯

n. 梯形, 不等邊四邊形

trapezoid詞形變化

形容詞: trapezoidal |

trapezoid同義詞

trapezium bone | os trapezium

trapezoid反義詞

parallelogram

trapezoid常見例句

1 、Keywords column tray;combined trapezoid spray tray;distillation column;ethylene oxide;───塔板;梯形立體噴射塔板;精餾塔;環(huán)氧乙烷;

2 、Keywords rapier loom;modified trapezoid acceleration motion;transitional curve;high order polynomial;───劍桿織機(jī);修正梯形加速度運(yùn)動(dòng)規(guī)律;過渡曲線;高次多項(xiàng)式;

3 、Study on a Vibrational Three-phase Trapezoid Wave Current-inverting Power Source───一種振蕩式三相梯形波變流電源的研究

4 、left steering trapezoid connection───左轉(zhuǎn)向梯形臂

5 、Analysis and Improvement of the Rough Cutting Method for Machining Double Trapezoid Helix───雙線梯形螺紋粗車方法的分析和改進(jìn)

6 、Fuzzy linear programming with trapezoid fuzzy numbers in restricted condition is transformed into classical linear programming by using a new ranking criterion, and an optimal solution is obtained.───摘要利用一種新的模糊數(shù)排序準(zhǔn)則，將約束條件中含有梯形模糊數(shù)的模糊線性規(guī)劃轉(zhuǎn)化為經(jīng)典的線性規(guī)劃，進(jìn)而求得了原模糊線性規(guī)劃的最優(yōu)解。

7 、A Remark on Mid-rectangle Formula and Trapezoid Formula───中矩形公式與梯形公式的注記

8 、The influence of crane load to the internal force of bottom chord bar of trapezoid steel roof truss───吊車荷載對(duì)梯形鋼屋架下弦桿內(nèi)力的影響

9 、nucleus of trapezoid body───斜方體核

10 、trapezoid canal with arc-bottom───弧底梯形渠道

11 、Algorithms for Hidden-lines Removal of Polyhedra on Trapezoid Decomposition───基于梯形劃分的多面體隱藏線消除算法

12 、The traditional trapezoid style could be used as a practical tool for cooking during blackout.───傳統(tǒng)的梯形風(fēng)格可在停電時(shí)被用作實(shí)用的烹飪工具。

13 、A nondimensional parameter method for calculating hydraulic best trapezoid section is presented, by which a hydraulic best trapezoid section is rapidly obtained.───提出了水力最佳梯形斷面的無量綱計(jì)算方法,運(yùn)用此法可快速方便地計(jì)算滿足要求的水力最佳橫斷面,提高了設(shè)計(jì)人員的工作效率。

14 、On the basis of a composing method of universal harmonic trapezoid motion law, nondimensional general curve formulation of driven cam is built.───摘要基于通用簡(jiǎn)諧梯形組合運(yùn)動(dòng)規(guī)律的構(gòu)成方法，建立了凸輪機(jī)構(gòu)從動(dòng)件無因次通用曲線方程。

15 、The largest equivalent stress of rectangle slide is greater than that of trapezoid slide and is located at the weld and rises with increasing height and length of the modest hot slide.───其最大應(yīng)力位于坡口堆焊金屬與滑軌的焊縫處，其值隨著滑軌高度和長度的增大而增大，在相同的幾何尺寸下，矩形滑軌大于梯形滑軌。

16 、Keywords Corduroy;Trapezoid method;Tearing Strength;Multilinear Regression;Weft;Breaking Elongation Rate;Breaking Strength;───關(guān)鍵詞燈芯絨織物;梯形法;撕裂強(qiáng)力;多元線性回歸;緯紗;斷裂伸長率;斷裂強(qiáng)力;

17 、trapezoid nuclei───[醫(yī)] 斜方體核

18 、Next, the clavicle sustained a direct blow that caused it to fracture (possibly completing the rupture of the trapezoid and conoid ligaments).───接著，鎖骨相同的直線打擊造成了鎖骨骨折（斜方和圓錐韌帶可能完全斷裂）。

19 、Generalized Trapezoid Shaped Membership Function───廣義梯形隸屬函數(shù)

20 、Double Set Parameter Trapezoid Plate Element with Symmetry───對(duì)稱形式的雙參數(shù)梯形板元

21 、ventral nucleus of trapezoid body───斜方體腹核

22 、The new Sun-Maid squared canister has the same weight as the round canister, and the Dole trapezoid contains more than the Dole box.───新的太陽女傭平方罐具有相同重量的輪殼，和杜爾梯形包含超過以工代賑方塊。

23 、Based on the analysis to thedemension of circle,a new method is given out in this article which can calculate the proper number of the demension in thecurved side trapezoid of arc-type.───尺寸標(biāo)注的完整性是機(jī)械制圖的一個(gè)基本要求,通過對(duì)圓弧進(jìn)行尺寸分析,給出了一種計(jì)算曲邊梯形應(yīng)標(biāo)尺寸數(shù)目的方法。

24 、The analysis shows that the base tone is always the strongest one in the frequency spectrums，and there are no even harmonic waves if it is an isosceles trapezoid.───分析表明，該模型的頻譜中基音總是最強(qiáng)，等腰梯形時(shí)，沒有偶次諧波；

25 、The earth pressure over the pit bottom calculated by the trapezoid mode, and the result is better according with the rectangle mode of sandy foundation.───坑底以上樁側(cè)土壓力采用梯形分布模式，計(jì)算結(jié)果與砂土地基的矩形分布實(shí)測(cè)土壓力符合較好。

26 、In order to improve the uniformity of its output energy density, this paper describes a novel trapezoid prism homogenizer.───為了改善其光束強(qiáng)度分布的均勻性,介紹了一種新型梯形棱鏡式準(zhǔn)分子激光光束均勻器。

27 、Calculate the Lift Coefficient of A Swept-back Trapezoid Flatbed Empennage───后掠梯形平板彈翼升力系數(shù)的計(jì)算

28 、At the same time, because of the demand by the relevant guidance in the villa market supply structure began last year by the elliptic spherical into "do equilateral trapezoid.───同時(shí)，由于受到相關(guān)需求的引導(dǎo)，今年別墅市場(chǎng)的供應(yīng)結(jié)構(gòu)也開始由去年的橢球形化為“倒等邊梯形”。

29 、Beijing’s wonton skin Why is trapezoid?───北京的餛飩皮為何是梯形的?

30 、This paper shows a new wave of non sinusoidal oscillation of mold new trapezoid and the establishment of its equations of velocity.───提出了一種新的結(jié)晶器非正弦振動(dòng)波形新梯形波，并建立了該振動(dòng)波形的速度表達(dá)式。

31 、Using uniformity design theory and software, the machine to pave geomembrane lining on the trapezoid canal has been researched and tested.───摘要借助均勻設(shè)計(jì)理論和軟件對(duì)防滲渠道塑膜鋪襯機(jī)進(jìn)行了試驗(yàn)研究。

32 、Methods Fourty-four cases were performed operation of anastomos is with two trapezoid and symmetrical lobulated flap in outpatient department.───方法門診采用梯形對(duì)稱二等分葉法吻合頭靜脈橈動(dòng)脈形成內(nèi)瘺44例。

33 、This paper introduced the trapezoid diagram design and also made the experimental model of modern elevator control device controlled by PLC.The model provided the control for a five floor elevator.───摘要介紹了用梯形圖設(shè)計(jì)并制作了用可編程控制器(PLC)控制的現(xiàn)代電梯控制裝置的實(shí)驗(yàn)?zāi)Ｐ汀?/p>

34 、Establishing a trapezoid micro-plate method to detect ABO blood group in serum───ABO血型反定型梯形微板法的建立

35 、Based on trapezoid truss,this parer introduces the features and the design methods of steel tube truss ,as well as some matters need to attend in the design ,Which may be a reference for designers.───以梯形屋架為例,介紹了鋼管屋架的特點(diǎn)和設(shè)計(jì)方法以及在設(shè)計(jì)時(shí)應(yīng)注意的問題,供設(shè)計(jì)人員參考。

36 、Application of the Combined Trapezoid Spray Tray in the Re-absorbing Tower───新型立體傳質(zhì)塔板在再吸收塔上的應(yīng)用

37 、However, some layouts, such as Trapezoid List in the List type, work well with larger amounts of text.───但某些布局(如“列表”類型中的“梯形列表”)適用于文字量較大的情況。

38 、trapezoid bone───[醫(yī)] 小多角骨

39 、First, we introduce the trapezoid drop method based on cumulative error, and give a study way of adaptation.───我們首先簡(jiǎn)單介紹基于累積誤差的梯形下降法，在此基礎(chǔ)上，給出了一種自適應(yīng)學(xué)習(xí)速率的調(diào)整方案。

40 、Reliability of GIS product based on trapezoid fuzzy number───基于梯形模糊數(shù)gis產(chǎn)品的可靠性分析

41 、Standard test method for trapezoid tearing strength of geotextiles───土工布梯形法撕破強(qiáng)力試驗(yàn)方法

42 、Trapezoid groove in processing manufacture process is easy to produce concentrated stress and reduce its life.To change the trapezoid groove to the arc groove;───開有梯形槽的碟形彈簧在制造過程中易產(chǎn)生應(yīng)力集中，本文把梯形槽改為弧形槽使離合器壽命大有提高；

43 、The following code sample uses Round to assist in the computation of the inner angles of a given trapezoid.───下面的代碼示例使用Round來幫助計(jì)算給定梯形的內(nèi)角。

44 、trapezoid bodles───[醫(yī)] 斜方體

45 、Flat bag style means the filter bag is in plane(envelope shape),trapezoid as well as other non-cylindrical shape.───扁袋式是指濾袋為平板型（信封型）、梯形以及非圓筒型的其它型。

46 、therefore, the conoid and trapezoid ligaments usually remain intact.───所以，圓錐和斜方韌帶通常保持完整。

47 、Compound trapezoid formula and its application───復(fù)化梯形公式及其應(yīng)用

48 、If we mark those differences and isolate them using trapezoids, let's see what we get.─── 如果我們把這些不同都標(biāo)出來 然后用四邊形把它們孤立出來 我們看看是什么情況

49 、Computer-aided design of steering trapezoid based on ADAMS software───基于ADAMS軟件的轉(zhuǎn)向梯形計(jì)算機(jī)輔助設(shè)計(jì)

50 、I'll start drawing squares, *s, and trapezoids through the text.─── 我會(huì)開始在文本上畫 方塊 三角和梯形

51 、Method of camera self-calibration based on isosceles trapezoid───一種基于等腰梯形的攝像機(jī)自標(biāo)定方法

52 、Consider the special quadrilateral element: right-angled trapeziod element.A kind of 12 freedom right-angled trapezoid plate elements are proposed.───摘要考慮特殊的四邊形單元-直角梯形單元，構(gòu)造出一類12自由度直角梯形板元；

53 、ULTIMATE BEARING CAPACITY OF H-SHAPED STEEL STUBS WITH TRAPEZOID WEB OF LARGE WIDTH-TO-THICKNESS RATIO───大寬厚比梯形腹板H形短柱的極限承載力

54 、three-dimensional trapezoid weave───三維梯度組織

55 、Force calculation and arrangement of bar in trapezoid slab at portal of reinforced concrete box-shaped culvert obliquely intersected with railway line───斜交鋼筋混凝土蓋板涵洞口梯形板受力計(jì)算及配筋

56 、Tubercle of trapezoid bone───小多角骨結(jié)節(jié)

57 、It has exterior styling features like black bezel wrap-around headlamps, a trapezoid C-Pillar and an extended tailgate which has been moved rearwards.───它外觀設(shè)計(jì)的功能，比如黑色面板纏繞大燈，梯形C柱和一個(gè)擴(kuò)展擋板已移到后面.

58 、Calculation on Leakage Inductance of the Rotor Trapezoid Slot in Asynchronous Motors───異步電機(jī)轉(zhuǎn)子梯形槽漏電感的計(jì)算

59 、Keywords Slotted Screen;Laser Cutting;Trapezoid Slit;───割縫篩管;激光切割;梯形縫;

60 、The new, square paper can for Sun-Maid raisins and the trapezoid carton for Dole raisins are great additions to the mix of raisin packages available in supermarkets.───新的，方文件可為太陽少女葡萄干和紙箱的梯形的杜爾葡萄干都是偉大的補(bǔ)充組合包葡萄干可在超市。

61 、Keywords Triangular and trapezoid flags;Vermilion;Vermilion tubercle;Repair;───三角瓣與梯形瓣;唇裂修復(fù);唇紅;唇珠;唇裂;

62 、symmetrical trapezoid fuzzy number───對(duì)稱梯形模糊數(shù)

63 、dorsal nucleus of trapezoid body───斜方體背核

64 、Valve Motor with Trapezoid Wave EMF───具有梯形波旋轉(zhuǎn)電勢(shì)的開關(guān)電動(dòng)機(jī)

65 、Long-throated Flume Can be Used for Flow Measurement in All Kinds of Channels with Trapezoid,Rectangular and Triangular Sections.───48種型號(hào)的量水檻屬修改型寬頂堰，適用于標(biāo)準(zhǔn)的梯形、矩形斷面的各類渠道量水。

66 、Keywords rapier looms;cam mechanisms;trapezoid;motion pattern;acceleration;constant speed;───劍桿織機(jī);凸輪機(jī)構(gòu);梯形;運(yùn)動(dòng)規(guī)律;加速度;等速;

67 、Dacryocystorhinostomy with trapezoid incision of dacryocyst on 309 eyes of chronic dacryocystitis───慢性淚囊炎淚囊梯形切開鼻粘膜吻合309眼

68 、The application that CNTR design the inside in the trapezoid diagram again is a new quest.───可逆計(jì)數(shù)器(CNTR)在梯形圖設(shè)計(jì)中的應(yīng)用又是一項(xiàng)新探索。

69 、ANALYSIS OF THE SECONDARY STRESS OF SQUARE STEEL TUBE TRAPEZOID ROOF TRUSS───方鋼管梯形屋架次應(yīng)力分析

70 、1. enlarges pours out support's spandrel wall active surface, the shape alters to the rectangle by the original trapezoid;───1、加大傾翻支座的側(cè)墻有效面積，形狀由原來的梯形改成矩形；

71 、KANTROVICH SOEUTION FOR THE PROBLEM OF BENDING OF SKEW ANGULAR PLATTE AND PLATE OF ISOSCELES TRAPEZOID───斜角板與等腰梯形板彎曲問題的康托洛維奇法

72 、the line that joins the midpoints of the nonparallel sides of a trapezoid───中線梯形非平行兩邊的中點(diǎn)連線

73 、CNTR design the inside's on trapezoid diagram application───可逆計(jì)數(shù)器在梯形圖設(shè)計(jì)中的應(yīng)用

74 、For making fine turning and trapezoid threading turning tools.───制造精車刀和螺紋車刀。

75 、trapezoid ridge───[醫(yī)] 斜方韌帶嵴

76 、modified trapezoid acceleration motion───修正梯形加速度運(yùn)動(dòng)規(guī)律

77 、Keywords micro-chemical engineering;micro-scale fluid flow;heat transfer;trapezoid microchannel;mirocheater;non-uniform;microreactor;───微化工;微流動(dòng);傳熱;梯形微通道;微換熱器;非均一;微反應(yīng)器;

78 、Some of the same advantages are true of the new Dole trapezoid, but it isn’t quite as space saving because the top of the canister is wider than the bottom.───一些相同的優(yōu)點(diǎn)是真正的新杜爾梯形，但它并不是像節(jié)省空間，因?yàn)樯戏降耐矊挾瘸^底部。

79 、Based on its thinking and trapezoidal fuzzy number expectations formula, the trapezoid fuzzy number definitions and related formula were given, decision-making compromise languge multiple indicator-type analysis was made.───基于折中型模糊多屬性決策方法的思想和梯形模糊數(shù)期望的計(jì)算公式，提出了梯形模糊數(shù)的相關(guān)定義和公式，給出語言多指標(biāo)決策問題的折中型分析法。

80 、The rotary cutter with super disc knife was introduced, and the trapezoid knife and the zigzag knife were designed to conduct the perpendicular experiment.───分析和設(shè)計(jì)了超大直徑圓盤式切割器，同時(shí)設(shè)計(jì)了一種梯形刀片和一種鋸齒形刀片，用于進(jìn)行對(duì)比正交試驗(yàn)。

81 、II just had a machete thrust nine inches into my thorax, breaking three ribs, puncturing my left lung and entirely severing my right trapezoidal.─── 我剛被大砍刀刺中 刀入胸腔22厘米 砍斷了三根肋骨 刺穿了左肺 完全切斷了我右手腕的骨頭

82 、Proof on Impossibility for Any Plane Trapezoid Linkage to Reproduce Ackermann Steering Exactly───平面梯形機(jī)構(gòu)不能精確實(shí)現(xiàn)無側(cè)滑轉(zhuǎn)向的證明

83 、the finished product on the advertising effects due to an umbrella with a triangle or isosceles trapezoid;───制品晴雨傘上印告白因施傘骨感化拔取不一角形或等腰梯形；

梯形中位線定理證明

梯形中位線定理證明如下：

梯形中位線定理是幾何學(xué)的一個(gè)定理，是指連接梯形兩腰中點(diǎn)的線段叫做梯形的中位線，梯形的中位線平行于兩底，并且等于兩底和的一半。

梯形（trapezoid）是只有一組對(duì)邊平行的四邊形。平行的兩邊叫做梯形的底邊：較長的一條底邊叫下底，較短的一條底邊叫上底；另外兩邊叫腰；

夾在兩底之間的垂線段叫梯形的高。一腰垂直于底的梯形叫直角梯形（righttrapezoid）。兩腰相等的梯形叫等腰梯形（isoscelestrapezoid）。

性質(zhì)

1、等腰梯形的兩條腰相等。

2、等腰梯形在同一底上的兩個(gè)底角相等。

3、等腰梯形的兩條對(duì)角線相等。

4、等腰梯形是軸對(duì)稱圖形，對(duì)稱軸是上下底中點(diǎn)的連線所在直線(過兩底中點(diǎn)的直線）。

判定

1、兩腰相等的梯形是等腰梯形；

2、同一底上的兩個(gè)角相等的梯形是等腰梯形；

3、對(duì)角線相等的梯形是等腰梯形。

中位線是一個(gè)數(shù)學(xué)術(shù)語，是平面幾何內(nèi)的三角形任意兩邊中點(diǎn)的連線或梯形兩腰中點(diǎn)的連線。

三角形：連接三角形兩邊中點(diǎn)的線段叫做三角形的中位線。三角形的中位線平行于第三邊，其長度為第三邊長的一半，通過相似三角形的性質(zhì)易得。

其兩個(gè)逆定理也成立，即經(jīng)過三角形一邊中點(diǎn)平行于另一邊的直線，必平分第三邊；以及三角形內(nèi)部平行于一邊且長度為此邊一半的線段必為此三角形的中位線。但是注意過三角形一邊中點(diǎn)作一長度為底邊一半的線段有兩個(gè)，不一定與底邊平行。

梯形：連結(jié)梯形兩腰中點(diǎn)的線段叫做梯形的中位線。梯形的中位線平行于上底和下底，其長度為上、下底長度和的一半，可將梯形旋轉(zhuǎn)180°、將其補(bǔ)齊為平行四邊形后易證。其逆定理正確與否與上相仿。

梯形求高的公式

梯形求高的公式是h=2S/(a+b)。

梯形介紹：

英文（trapezoid）是只有一組對(duì)邊平行的四邊形，平行的兩邊叫做梯形的底邊：較長的一條底邊叫下底，較短的一條底邊叫上底；另外兩邊叫腰；夾在兩底之間的垂線段叫梯形的高。一腰垂直于底的梯形叫直角梯形（right trapezoid）。兩腰相等的梯形叫等腰梯形（isosceles trapezoid）。

數(shù)學(xué)課介紹：

是中小學(xué)學(xué)科科目。中國古代曾稱算術(shù)，后稱算學(xué)。1936年9月始統(tǒng)一稱數(shù)學(xué)。中小學(xué)數(shù)學(xué)教學(xué)內(nèi)容主要包括算術(shù)、代數(shù)、幾何、三角、平面解析幾何、微積分和統(tǒng)計(jì)、概率的初步知識(shí)等。為適應(yīng)不同時(shí)期經(jīng)濟(jì)和社會(huì)發(fā)展的要求及教育目的和教育對(duì)象的變化而有所變更。

中國學(xué)校設(shè)數(shù)學(xué)，從清同治六年（1867）在京師同文館內(nèi)添設(shè)算學(xué)館開始。光緒二十九年十一月1904年1月頒布的《奏定學(xué)堂章程》規(guī)定，初等小學(xué)堂和高等小學(xué)堂設(shè)算術(shù)，中學(xué)堂和高等學(xué)堂相當(dāng)于高級(jí)中學(xué)設(shè)算術(shù)、代數(shù)、幾何、三角、解析幾何、微積分。

數(shù)學(xué)介紹：

數(shù)學(xué)[英語：mathematics，源自古希臘語μάθημα（máthēma）；經(jīng)常被縮寫為math或maths]，是研究數(shù)量、結(jié)構(gòu)、變化、空間以及信息等概念的一門學(xué)科。

數(shù)學(xué)是人類對(duì)事物的抽象結(jié)構(gòu)與模式進(jìn)行嚴(yán)格描述、推導(dǎo)的一種通用手段，可以應(yīng)用于現(xiàn)實(shí)世界的任何問題，所有的數(shù)學(xué)對(duì)象本質(zhì)上都是人為定義的。從這個(gè)意義上，數(shù)學(xué)屬于形式科學(xué)，而不是自然科學(xué)。不同的數(shù)學(xué)家和哲學(xué)家對(duì)數(shù)學(xué)的確切范圍和定義有一系列的看法。

在人類歷史發(fā)展和社會(huì)生活中，數(shù)學(xué)發(fā)揮著不可替代的作用，同時(shí)也是學(xué)習(xí)和研究現(xiàn)代科學(xué)技術(shù)必不可少的基本工具。