penetrator

英 ['penɪtreɪtə] 美 ['penɪˌtreɪtə]

• n. 侵入者(洞察者；穿透器；过烧)

英英释义

Noun:

1. an intruder who passes into or through (often by overcoming resistance)

词汇搭配

• diamond penetrator hardness 维氏金刚石硬度...
• ball penetrator 钢球压头
• diamond penetrator 金刚石钻头