Home > Term: noncoal mine
noncoal mine
A mine in which the material being mined is incombustible or contains at least 65% by weight of incombustible material, and in which the underground atmosphere in any open workings contains less than 0.25% by volume of flammable gas.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
0
ผู้สร้าง
- ed.young
- 100% positive feedback
(Milwaukee, United States)