1) slotted pipe
梯形缝筛管
1.
Stating the function and usage of Keystone slotted pipes,Keystone slots manufacturing method by laser reliability of Keystone manufacturing method by laser.
简述了梯形缝筛管的作用、用途及激光加工梯形缝的方法和激光加工梯形缝筛管的可靠性。
2) Trapezoid
梯形
1.
Analysis of Slope Plane Position of Trapezoid Leaf of Tapered Leaf Springs;
变截面钢板弹簧梯形叶片的斜面位置分析
2.
The paper introduces a modified trapezoid acceleration pattern with a constant speed part for loomrapier motion driven by cam.
本文提出了一种带有等速运动的改进梯形加速运动规律,用于凸轮传动的剑杆运动。
3.
The critical water depth of open channels with trapezoid cross sections and smooth slopes is calculated with a weighted approximation method.
用两步加权迭代法计算小底坡梯形明渠的临界水深，计算简便，而精度很高：迭代两步所得结果的相对误差为１０－５数量级，迭代三步为１０－６数量级，适用范围也较宽，能满足一般水利工程的需要。
3) terrace
梯形
1.
Study of supporting characteristics of arc terrace metallic support in roadway;
拱梯形金属支架的承载能力分析
2.
In order to meet the varied requirement of roadway support,the metallic arc-terrace support is newly developed.
为适应巷道支护的多种要求,新研制开发了弧状梯形金属支架,针对其力学特征,采用曲梁力学模型进行了受力分析,求解出了最大承载能力的表达式,与梯形金属支架承载能力相比较,得到了弧状梯形金属支架的承载能力系数。
4) trapezium
梯形
1.
Based on the gray assembles, the trapezium gray analysis is presented, and it is applied to environmental quality assessment.
以灰色聚类为基础 ,提出了梯形灰色聚类分析法 ,并将其应用于环境质量评价之中 。
5) trapezoidal method
梯形法
1.
Approximate calculating definite integrals by rectangular method,trapezoidal method and parabolic method are considered under some weaker condition and best estimatons of errors are obtained.
在较弱的条件下考虑了定积分近似计算的矩形法、梯形法和抛物线法,并得到误差的最佳估计。
2.
Besides,the trapezoidal method and parabolic method is used to make approximate calcalation and error estimate of the integral.
同时 ,用梯形法和抛物线法对此积分作了近似计算和误差估
6) trapezoidal chart
梯形图
1.
The trapezoidal chart programming often is the primary question in the PLC system application.
在PLC系统应用中,梯形图的程序设计往往是最主要的问题,通过相应的实例论述梯形图程序的4种设计方法:时序逻辑设计法、状态表设计法、顺序控制设计法及经验设计法。
2.
It introduced the design method which carried out the hydraulic pressure automatic cyclic control system with PLC, specified the application of Mitsubishi Corporation FX2N micro-machine in the system, and analyzed the principle of work which PLC controlled process, including PLC type choice, distributing address of I/O, check the number of I/O, the control circuit of PLC and trapezoidal chart.
阐述了采用可编程控制器(PLC)进行液压自动循环控制系统的设计方法,详细说明了三菱公司的FX2N微型机在本系统中的应用以及PLC控制过程的工作原理,其中包括I/O端口的分配、确定I/O点数、以及PLC的控制电路及梯形图。
参考词条
补充资料：筛管
植物韧皮部内输导有机养料的管道。由许多管状活细胞上下连接而成。相邻两细胞的横壁上有许多小孔，称为“筛孔”。两细胞的原生质体通过筛孔彼此相通。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。