Home > Term: permitted light
permitted light
Locked safety lamp or any other means of lighting, the use of which below ground in British coal mines is authorized by Regulations under the Act.
- 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)
