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1·A new method of calculating soil pressure diagram for multi-layered soil excavation with finite surcharge is presented and the results are compared with those of the trapezoid soil pressure diagram.

本文对于有限地面荷载作用下的多层土基坑提出了合理的土压力计算方法，并与梯形土压力分布模式进行了对比。

2·The generation and the detection method of the trapezoid error are presented in the paper.

介绍了梯形误差的产生，以及梯形误差的检测方法。

3·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。

4·On the basis of a composing method of universal harmonic trapezoid motion laws, nondimensional general curve formulation of driven cam is built.

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。

5·This paper presents a new way, i. e., a advance estimate modified method, for calculating critical water depth of open channel with trapezoid section and smooth slope.

本文提出了一条求解小底坡梯形明渠临界水深的新途径——预估修正法。

6·A compact trapezoid meander line monopole antenna is presented. The design analysis of the antenna is performed with the method of moments.

基于矩量法数值方法，研究了由梯形弯折线构成的单极子天线的谐振特性。

7·The trapezoid membership function is constructed by fuzzy method.

按照模糊方法，以梯形形式建立隶属函数。

8·Calculation method of reinforced concrete isosceles trapezoid slab is experiential arithmetic which simplified isosceles trapezoid into rectangle slab to calculate.

在均布荷载作用下，对钢筋混凝土周边固支等腰梯形板的计算通常都是将其简化成周边固支当量矩形板进行计算。

9·Presently, calculation method of a reinforced concrete isosceles trapezoid slab is experiential arithmetic with which the isosceles trapezoid slab is simplified into an equivalent rectangled slab.

目前，在均布荷载作用下，计算钢筋混凝土周边固支等腰梯形板通常是用经验算法即是把钢筋混凝土等腰梯形板简化成当量矩形板进行计算。

10·First of all, according to Ackerman theoretical shift characteristics, the use of least-squares method for structural optimization of steering trapezoid.

首先根据Ackerman理论转向特性，运用最小二乘法对转向梯形进行结构优化。