In this paper some of the problems encountered in the calculation of the valve spring force are discussed.

本文概述了目前计算气阀弹簧力中所存在的一些问题。

youdao

In this paper some of the problems encountered in the calculation of the valve spring force are discussed.

本文概述了目前计算气阀弹簧力中所存在的一些问题。

youdao