Home > Term: 직선 축 사
직선 축 사
석탄의 두꺼운 층으로 측면 발굴.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- Hyun-woo Kim
-
(V.I.P) 28279 points - 100% positive feedback
(Seoul, South Korea)
