n.变速箱;
例句:
The design and calculation of the closed harmonic-planetary gear box are detailedly discussed this paper.
本文较详细地讨论了封闭谐波 - 行星齿轮减速器的设计计算.
Gear box head for speed selection.
齿轮箱的速度选择头部.
High intention gear box High efficient driving.
选用高强度硬齿轮箱,传动效率高,噪音低.