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.

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本文研究了叶片泵定子改进梯形加速度运动规律轮廓线型面靠模的加工问题。

This paper has solved problem of machining for the profile of the blade pump stator to improve trapezium accelerated motion regulation.

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基地不规则的几何形状——一个不规则的梯形——以及三面被街道围绕的现状成为了一个独一无二的设计挑战。

The sites irregular geometry - an irregular trapezoid - and being surrounded on three sides by street presented was a unique design challenge.

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