单词：contact brush
contact brush的用法和样例：
例句
- 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。
- 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。
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