by power from an engine 通过发动机的动力 a mechanically powered vehicle 机械驱动的交通工具
using a machine or an engine 使用机器或发动机 The patient was mechanically ventilated. 病人接受了机械通气。 mechanically recovered meat 机械回收的肉
in a way that is connected with mechanics (= the science of movement and force) 在某种程度上与力学有关 The theory was flawed electrically, mechanically and energetically. 该理论在电气、机械和能量方面都有缺陷。
without thinking, like a machine 没有思想,像机器一样 with a good understanding of how machines work 对机器如何工作有很好的理解