three-wire installation

• 三线装置

three-wire installation的用法和样例：

例句

1. It is composed of payoff stand,drawing machine,wire accumulator,dual takeup,wirePointer and stripper,machine electric control.
   机组由放线架，拉线主机，储线装置，双盘收线机，轧头穿模机，电气控制系统组成。