His mouth felt like an instrument that was separate from the rest of him.

他感觉自己的嘴就是个工具，和身体的其他部位分开了。

youdao

He was listening to his own voice as the words came out, almost as if the words were not his. His mouth felt like an instrument that was separate from the rest of him.

他说话时仔细听着自己的声音，这些话几乎不像是他说出的，他的嘴感觉像是与身体其他部分分割开来的一个器官。

youdao

If using a separate current source and voltmeter to make low resistance measurements, each instrument must be checked for non-ohmic contacts.

如果使用分离的电流源和电压表来进行低电阻测量，则必须检查每台仪器的非欧姆接触情况。

youdao

Instead of one satellite carrying every instrument, EPS-SG is likely to split the complement across two separate platforms.

BBC: Weather satellites and the gathering storm