trapezoid是什么意思,trapezoid中文翻译,trapezoid发音、用法及例句

•trapezoid

trapezoid发音

英:[ˈtræpəzɒɪd]  美:[ˈtræpɪˌzɒɪd]

英:  美:

trapezoid中文意思翻译

n. 梯形, 不等边四边形

trapezoid词形变化

形容词: trapezoidal |

trapezoid同义词

trapezium bone |os trapezium

trapezoid反义词

parallelogram

trapezoid常见例句

1 、Keywords column tray;combined trapezoid spray tray;distillation column;ethylene oxide;───塔板;梯形立体喷射塔板;精馏塔;环氧乙烷;

2 、Keywords rapier loom;modified trapezoid acceleration motion;transitional curve;high order polynomial;───剑杆织机;修正梯形加速度运动规律;过渡曲线;高次多项式;

3 、Study on a Vibrational Three-phase Trapezoid Wave Current-inverting Power Source───一种振荡式三相梯形波变流电源的研究

4 、left steering trapezoid connection───左转向梯形臂

5 、Analysis and Improvement of the Rough Cutting Method for Machining Double Trapezoid Helix───双线梯形螺纹粗车方法的分析和改进

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.───摘要利用一种新的模糊数排序准则,将约束条件中含有梯形模糊数的模糊线性规划转化为经典的线性规划,进而求得了原模糊线性规划的最优解。

7 、A Remark on Mid-rectangle Formula and Trapezoid Formula───中矩形公式与梯形公式的注记

8 、The influence of crane load to the internal force of bottom chord bar of trapezoid steel roof truss───吊车荷载对梯形钢屋架下弦杆内力的影响

9 、nucleus of trapezoid body───斜方体核

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

11 、Algorithms for Hidden-lines Removal of Polyhedra on Trapezoid Decomposition───基于梯形划分的多面体隐藏线消除算法

12 、The traditional trapezoid style could be used as a practical tool for cooking during blackout.───传统的梯形风格可在停电时被用作实用的烹饪工具。

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断面的无量纲计算方法,运用此法可快速方便地计算满足要求的水力最佳横断面,提高了设计人员的工作效率。

14 、On the basis of a composing method of universal harmonic trapezoid motion law, nondimensional general curve formulation of driven cam is built.───摘要基于通用简谐梯形组合运动规律的构成方法,建立了凸轮机构从动件无因次通用曲线方程。

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.───其最大应力位于坡口堆焊金属与滑轨的焊缝处,其值随着滑轨高度和长度的增大而增大,在相同的几何尺寸下,矩形滑轨大于梯形滑轨。

16 、Keywords Corduroy;Trapezoid method;Tearing Strength;Multilinear Regression;Weft;Breaking Elongation Rate;Breaking Strength;───关键词灯芯绒织物;梯形法;撕裂强力;多元线性回归;纬纱;断裂伸长率;断裂强力;

17 、trapezoid nuclei───[医] 斜方体核

18 、Next, the clavicle sustained a direct blow that caused it to fracture (possibly completing the rupture of the trapezoid and conoid ligaments).───接着,锁骨相同的直线打击造成了锁骨骨折(斜方和圆锥韧带可能完全断裂)。

19 、Generalized Trapezoid Shaped Membership Function───广义梯形隶属函数

20 、Double Set Parameter Trapezoid Plate Element with Symmetry───对称形式的双参数梯形板元

21 、ventral nucleus of trapezoid body───斜方体腹核

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.───新的太阳女佣平方罐具有相同重量的轮壳,和杜尔梯形包含超过以工代赈方块。

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.───尺寸标注的完整性是机械制图的一个基本要求,通过对圆弧进行尺寸分析,给出了一种计算曲边梯形应标尺寸数目的方法。

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,该模型的频谱中基音总是最强,等腰梯形时,没有偶次谐波;

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.───坑底以上桩侧土压力采用梯形分布模式,计算结果与砂土地基的矩形分布实测土压力符合较好。

26 、In order to improve the uniformity of its output energy density, this paper describes a novel trapezoid prism homogenizer.───为了改善其光束强度分布的均匀性,介绍了一种新型梯形棱镜式准分子激光光束均匀器。

27 、Calculate the Lift Coefficient of A Swept-back Trapezoid Flatbed Empennage───后掠梯形平板弹翼升力系数的计算

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.───同时,由于受到相关需求的引导,今年别墅市场的供应结构也开始由去年的椭球形化为“倒等边梯形”。

29 、Beijing’s wonton skin Why is trapezoid?───北京的馄饨皮为何是梯形的?

30 、This paper shows a new wave of non sinusoidal oscillation of mold new trapezoid and the establishment of its equations of velocity.───提出了一种新的结晶器非正弦振动波形新梯形波,并建立了该振动波形的速度表达式。

31 、Using uniformity design theory and software, the machine to pave geomembrane lining on the trapezoid canal has been researched and tested.───摘要借助均匀设计理论和软件对防渗渠道塑膜铺衬机进行了试验研究。

32 、Methods Fourty-four cases were performed operation of anastomos is with two trapezoid and symmetrical lobulated flap in outpatient department.───方法门诊采用梯形对称二等分叶法吻合头静脉桡动脉形成内瘘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.───摘要介绍了用梯形图设计并制作了用可编程控制器(PLC)控制的现代电梯控制装置的实验模型。

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.───以梯形屋架为例,介绍了钢管屋架的特点和设计方法以及在设计时应注意的问题,供设计人员参考。

36 、Application of the Combined Trapezoid Spray Tray in the Re-absorbing Tower───新型立体传质塔板在再吸收塔上的应用

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”类型中的“梯形列表”)适用于文字量较大的情况。

38 、trapezoid bone───[医] 小多角骨

39 、First, we introduce the trapezoid drop method based on cumulative error, and give a study way of adaptation.───我们首先简单介绍基于累积误差的梯形下降法,在此基础上,给出了一种自适应学习速率的调整方案。

40 、Reliability of GIS product based on trapezoid fuzzy number───基于梯形模糊数gis产品的可靠性分析

41 、Standard test method for trapezoid tearing strength of geotextiles───土工布梯形法撕破强力试验方法

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;───开有梯形槽的碟形弹簧在制造过程中易产生应力集中,本文把梯形槽改为弧形槽使离合器寿命大有提高;

43 、The following code sample uses Round to assist in the computation of the inner angles of a given trapezoid.───下面的代码示例使用Round来帮助计算给定梯形的内角。

44 、trapezoid bodles───[医] 斜方体

45 、Flat bag style means the filter bag is in plane(envelope shape),trapezoid as well as other non-cylindrical shape.───扁袋式是指滤袋为平板型(信封型)、梯形以及非圆筒型的其它型。

46 、therefore, the conoid and trapezoid ligaments usually remain intact.───所以,圆锥和斜方韧带通常保持完整。

47 、Compound trapezoid formula and its application───复化梯形公式及其应用

48 、If we mark those differences and isolate them using trapezoids, let's see what we get.─── 如果我们把这些不同都标出来 然后用四边形把它们孤立出来 我们看看是什么情况

49 、Computer-aided design of steering trapezoid based on ADAMS software───基于ADAMS软件的转向梯形计算机辅助设计

50 、I'll start drawing squares, *s, and trapezoids through the text.─── 我会开始在文本上画 方块 三角和梯形

51 、Method of camera self-calibration based on isosceles trapezoid───一种基于等腰梯形的摄像机自标定方法

52 、Consider the special quadrilateral element: right-angled trapeziod element.A kind of 12 freedom right-angled trapezoid plate elements are proposed.───摘要考虑特殊的四边形单元-直角梯形单元,构造出一类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───大宽厚比梯形腹板H形短柱的极限承载力

54 、three-dimensional trapezoid weave───三维梯度组织

55 、Force calculation and arrangement of bar in trapezoid slab at portal of reinforced concrete box-shaped culvert obliquely intersected with railway line───斜交钢筋混凝土盖板涵洞口梯形板受力计算及配筋

56 、Tubercle of trapezoid bone───小多角骨结节

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.───它外观设计的功能,比如黑色面板缠绕大灯,梯形C柱和一个扩展挡板已移到后面.

58 、Calculation on Leakage Inductance of the Rotor Trapezoid Slot in Asynchronous Motors───异步电机转子梯形槽漏电感的计算

59 、Keywords Slotted Screen;Laser Cutting;Trapezoid Slit;───割缝筛管;激光切割;梯形缝;

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,方文件可为太阳少女葡萄干和纸箱的梯形的杜尔葡萄干都是伟大的补充组合包葡萄干可在超市。

61 、Keywords Triangular and trapezoid flags;Vermilion;Vermilion tubercle;Repair;───三角瓣与梯形瓣;唇裂修复;唇红;唇珠;唇裂;

62 、symmetrical trapezoid fuzzy number───对称梯形模糊数

63 、dorsal nucleus of trapezoid body───斜方体背核

64 、Valve Motor with Trapezoid Wave EMF───具有梯形波旋转电势的开关电动机

65 、Long-throated Flume Can be Used for Flow Measurement in All Kinds of Channels with Trapezoid,Rectangular and Triangular Sections.───48种型号的量水槛属修改型宽顶堰,适用于标准的梯形、矩形断面的各类渠道量水。

66 、Keywords rapier looms;cam mechanisms;trapezoid;motion pattern;acceleration;constant speed;───剑杆织机;凸轮机构;梯形;运动规律;加速度;等速;

67 、Dacryocystorhinostomy with trapezoid incision of dacryocyst on 309 eyes of chronic dacryocystitis───慢性泪囊炎泪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.───可逆计数器(CNTR)在梯形图设计中的应用又是一项新探索。

69 、ANALYSIS OF THE SECONDARY STRESS OF SQUARE STEEL TUBE TRAPEZOID ROOF TRUSS───方钢管梯形屋架次应力分析

70 、1. enlarges pours out support's spandrel wall active surface, the shape alters to the rectangle by the original trapezoid;───1、加大倾翻支座的侧墙有效面积,形状由原来的梯形改成矩形;

71 、KANTROVICH SOEUTION FOR THE PROBLEM OF BENDING OF SKEW ANGULAR PLATTE AND PLATE OF ISOSCELES TRAPEZOID───斜角板与等腰梯形板弯曲问题的康托洛维奇法

72 、the line that joins the midpoints of the nonparallel sides of a trapezoid───中线梯形非平行两边的中点连线

73 、CNTR design the inside's on trapezoid diagram application───可逆计数器在梯形图设计中的应用

74 、For making fine turning and trapezoid threading turning tools.───制造精车刀和螺纹车刀。

75 、trapezoid ridge───[医] 斜方韧带嵴

76 、modified trapezoid acceleration motion───修正梯形加速度运动规律

77 、Keywords micro-chemical engineering;micro-scale fluid flow;heat transfer;trapezoid microchannel;mirocheater;non-uniform;microreactor;───微化工;微流动;传热;梯形微通道;微换热器;非均一;微反应器;

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.───一些相同的优点是真正的新杜尔梯形,但它并不是像节省空间,因为上方的筒宽度超过底部。

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.───基于折中型模糊多属性决策方法的思想和梯形模糊数期望的计算公式,提出了梯形模糊数的相关定义和公式,给出语言多指标决策问题的折中型分析法。

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.───分析和设计了超大直径圆盘式切割器,同时设计了一种梯形刀片和一种锯齿形刀片,用于进行对比正交试验。

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.─── 我刚被大砍刀刺中 刀入胸腔22厘米 砍断了三根肋骨 刺穿了左肺 完全切断了我右手腕的骨头

82 、Proof on Impossibility for Any Plane Trapezoid Linkage to Reproduce Ackermann Steering Exactly───平面梯形机构不能精确实现无侧滑转向的证明

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

梯形中位线定理证明

梯形中位线定理证明如下:

梯形中位线定理是几何学的一个定理,是指连接梯形两腰中点的线段叫做梯形的中位线,梯形的中位线平行于两底,并且等于两底和的一半。

梯形(trapezoid)是只有一组对边平行的四边形。平行的两边叫做梯形的底边:较长的一条底边叫下底,较短的一条底边叫上底;另外两边叫腰;

夹在两底之间的垂线段叫梯形的高。一腰垂直于底的梯形叫直角梯形(righttrapezoid)。两腰相等的梯形叫等腰梯形(isoscelestrapezoid)。

性质

1、等腰梯形的两条腰相等。

2、等腰梯形在同一底上的两个底角相等。

3、等腰梯形的两条对角线相等。

4、等腰梯形是轴对称图形,对称轴是上下底中点的连线所在直线(过两底中点的直线)。

判定

1、两腰相等的梯形是等腰梯形;

2、同一底上的两个角相等的梯形是等腰梯形;

3、对角线相等的梯形是等腰梯形。

中位线是一个数学术语,是平面几何内的三角形任意两边中点的连线或梯形两腰中点的连线。

三角形:连接三角形两边中点的线段叫做三角形的中位线。三角形的中位线平行于第三边,其长度为第三边长的一半,通过相似三角形的性质易得。

其两个逆定理也成立,即经过三角形一边中点平行于另一边的直线,必平分第三边;以及三角形内部平行于一边且长度为此边一半的线段必为此三角形的中位线。但是注意过三角形一边中点作一长度为底边一半的线段有两个,不一定与底边平行。

梯形:连结梯形两腰中点的线段叫做梯形的中位线。梯形的中位线平行于上底和下底,其长度为上、下底长度和的一半,可将梯形旋转180°、将其补齐为平行四边形后易证。其逆定理正确与否与上相仿。

梯形求高的公式

梯形求高的公式是h=2S/(a+b)。

梯形介绍:

英文(trapezoid)是只有一组对边平行的四边形,平行的两边叫做梯形的底边:较长的一条底边叫下底,较短的一条底边叫上底;另外两边叫腰;夹在两底之间的垂线段叫梯形的高。一腰垂直于底的梯形叫直角梯形(right trapezoid)。两腰相等的梯形叫等腰梯形(isosceles trapezoid)。

数学课介绍:

是中小学学科科目。中国古代曾称算术,后称算学。1936年9月始统一称数学。中小学数学教学内容主要包括算术、代数、几何、三角、平面解析几何、微积分和统计、概率的初步知识等。为适应不同时期经济和社会发展的要求及教育目的和教育对象的变化而有所变更。

中国学校设数学,从清同治六年(1867)在京师同文馆内添设算学馆开始。光绪二十九年十一月1904年1月颁布的《奏定学堂章程》规定,初等小学堂和高等小学堂设算术,中学堂和高等学堂相当于高级中学设算术、代数、几何、三角、解析几何、微积分。

数学介绍:

数学[英语:mathematics,源自古希腊语μάθημα(máthēma);经常被缩写为math或maths],是研究数量、结构、变化、空间以及信息等概念的一门学科。

数学是人类对事物的抽象结构与模式进行严格描述、推导的一种通用手段,可以应用于现实世界的任何问题,所有的数学对象本质上都是人为定义的。从这个意义上,数学属于形式科学,而不是自然科学。不同的数学家和哲学家对数学的确切范围和定义有一系列的看法。

在人类历史发展和社会生活中,数学发挥着不可替代的作用,同时也是学习和研究现代科学技术必不可少的基本工具。