punch brush

• 穿孔电刷

punch brush的用法和样例：

例句

1. Shining nc-Ni films are prepared with the electric brush plating technology.
   采用电刷镀技术在铜基体表面上制备光亮的纳米镍薄膜。
2. The no-brush direct current electromotor is a kind of direct current electromotor without any mechanical commutator or brush.
   无刷直流电机是一种没有机械换向器和电刷的直流电机。