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square
A term used in the slate industry with reference to roofing slate. A square is a sufficient number of any size to lay 100 ft2(9.29 m2) of roof, allowing the standard 3-in (7.62-cm) lap. The estimated weight of a square of 1/4-in (6.4-mm) slate is 1,000 lb (454 kg).
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)