auxiliary equipment

名词 auxiliary equipment:

1. electronic equipment not in direct communication (or under the control of) the central processing unit
   同义词：off-line equipment

1. A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.
   机械系统用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备