The pressure experienced by a rock during metamorphism is due primarily to the weight of the overlying rocks (i.e., lithostatic pressure) and is generally reported in units of bars or kilobars. The standard scientifi. [pdf]
The present study developed a suitable foam dust-remove device for down-the-hole (DTH) drilling in open-pit mines and researched its foaming properties to solve the resulting serious dust pollution. We res. [pdf]
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