Home > Term: face half and half
face half and half
Eng. A longwall face crossing the main cleavage planes of the seam at an angle of 45 degrees .
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- ed.young
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(Milwaukee, United States)