machine factory 和 machinery factory 区别

Machine和Machinery有什么区别 machinery和machine有何区别 machine与machinery区别用法 machine和machinery的区别是什么?各自怎样用啊? factory和plant的区别? in a factory 和at a factory的区别 this factory produces machine tools factory Machine & Machinery 请问industry和factory有什么区别? 机器厂 英语是什么?是不是machine factory? The factory has bought a new machine