Home > Term: shooting on-the-free
shooting on-the-free
The use of a smaller charge of powder to blow down the face of the coal after it has been undercut, as distinguished from "shooting off-the-solid".
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)