两者之间是主从的关系，不能互相颠倒。

Relation between them is principal and subordinate, which cannot be reversed.

youdao

提出了一种热卷箱与粗轧和精轧互为主从的主令速度控制新方法。

A new approach to master speed control is proposed, in which coil box and roughing mill and finishing mil are combined with each other as master-slave device.

youdao

公主从百合花的叶子里向外窥看，同时问出了什么事。

Out of the white lily leaves the Princess peeped, too, and asked what was the matter.

youdao

He is at war and he is serving under a commander, and so the behavior of these people towards one another is not precisely like what it would be.

他们乐于战斗并服从命令,这种特殊的主从的关系,和我们所想象的完全不同

耶鲁公开课 - 古希腊历史简介课程节选