And they can print objects in multiple materials, such as a plastic remote-control unit with rubbery buttons.
他们还能制造多材料的物件，如有橡胶按钮的塑料遥控器。
The distributed file server consists of one central control unit and multiple local file servers.
该分布式文件服务器由一个集中控制单元和多个本地文件服务器组成。
A new control method of multiunit inverter is described, which determines the triggering pulse for each unit to obtain the sine wave output through multiple-phase shifting superimposition principle.
研究了多重化逆变器的一种控制方法，采用逆推的方法确定各单元的触发脉冲，通过多重移相叠加原理得到正弦波输出。
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