椭圆裙活塞 elliptical skirted piston椭圆裙活塞 She skirted round the problem of the high cost.她避而不谈巨额费用问题.
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为提高工作性能，活塞裙部设计成中凸变椭圆型，立体靠模仿形车削是常用的加工方法。
To improve performs of engine, the piston skirt curve is designed to be middle convex and varied elliptic pattern, copying manufacturing with master piston is commonly used.
在对HS - 700型发动机活塞裙部型面深入研究的基础上进行了变椭圆截面设计。
Based on a thorough study of moulding plane of piston skirt of HS-700 type gasoline engine, the design of variety ellipse section is made.
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