Home > Term: 아래쪽 문
아래쪽 문
경사 석탄 얼굴의 아래쪽 끝에 게이트도로.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- Hei Ryung
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(V.I.P) 33881 points - 100% positive feedback
