... 汽门摇臂盖Rocker Cover 汽门弹簧Valve Spring 汽门导管Valve Guide ...
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汽门弹簧座 Valve Spring Retainer
内汽门弹簧 Valve spring
汽门弹簧
Valve spring
以上为机器翻译结果，长、整句建议使用 人工翻译 。
本文对内燃机汽门弹簧进行优化设计，采用了约束正定式几何规划对偶法。
The present paper introduces the optimized design of valve springs of the internal-combustion engine by the duality method of the geometric programming with the positive term equations of constraint.
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