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| 岩石常数说明岩石可爆性的数值，以kg/m³表示。岩石常数表示恰好需要多少炸药来脱落覆土 lm,炮孔直径33mm,高lm梯段上的均质岩石。岩石极端常数值为 0.2kg/m³ 〈易爆〉至 1. Okg/m³ 〈难爆〉；标准值为0.4kg/m³ | |||
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rock constant : 4 phrases in 1 subject |
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