海词手机词典

Comparative study about the calculation of cylindrical gear drive design are processed between the standards of ISO/GB and AGMA,then the specialty of calculating formulas is researched and the meaning and selection of relative fators are investigated.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌