(1)机器(械)(总称)(machines collectively)[U]：farm/textile～农业/纺织机械;the～at the mill磨坊机械;a lot of/a mass of/much up-to-date～一批/大量/许多新式机械;Many products are made by～rather than by hand.许多产品是机器制造的，不是手工制作的。〖同〗equipment，apparatus;

(2)机器的运转部件，机械装置(working parts of a machine)[C]：the～of an elevator电梯的机械部件;the～of a clock/a watch/a dishwasher钟表/手表/洗碗机的机械部件;The ship's～is being overhauled.船体的机械装置正在进行彻底检查。〖同〗apparatus，mechanism;

(3)机构，系统(any system by which action，order，etc，is maintained)[U][N(of/for)]：the～of the law/the state/the government/the school authority/the propaganda法律/国家/政府/学校领导/宣传机构;set up～for mediation/for dealing with complaints设立仲裁/处理投诉机关;the Home Office Machinery内政部;〖同〗system，organization;

【辨异】一台机器称machine，机器内部之构造或机器集合称为 machinery，如：Eggs are sorted by a machine.(用机器分拣鸡蛋。)A factory contains much machinery.(工厂有许多机器。)