在此基础上，选择一组口面参数设计了一梯形进口的平面埋入式进气道方案，并进行了高速风洞试验验证。
Then by selecting a group of suitable entrance parameters, a submerged inlet with the trapezoid entrance on the plane surface is designed and verified by wind tunnel tests.
分析了闪光对头焊工艺过程和电气控制特点，提出采用PLC控制方案，给出了控制系统梯形图及程序。
The technological process of flash welding and the characteristic of electricity control are analyzed. The control plan with PLC, ladder diagram and the program are put forward.
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。
First, we introduce the trapezoid drop method based on cumulative error, and give a study way of adaptation.
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