芯棒

芯棒 [xīn bàng]

1. ■ plug; core rod; mandrel; dabber; piercing point bar

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常用词组

1. ■ 芯棒淬火 cored hardening;

2. ■ 芯棒划痕 plug line;

3. ■ 芯棒轧管 plug rolling