penetrator
英['penɪtreɪtə]
美['penɪˌtreɪtə]
- n.侵入者(洞察者；穿透器；过烧)
详细释义
Noun:
-
an intruder who passes into or through (often by overcoming resistance)
用法讲解
- diamond penetrator hardness 维氏金刚石硬度...
- ball penetrator 钢球压头
- diamond penetrator 金刚石钻头
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