Home > Term: 斯普纳
斯普纳
烟煤开采，一个民工人铲出炸药在收取下来煤、 爆破钻孔的钻 cupshaped 投影使用一个细长的铁杆弯曲成直角对句柄。
- Part of Speech: noun
- Industry/Domain: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Creator
- Lianghong
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(V.I.P) 31203 points - 100% positive feedback
(Hangzhou, China)
