Tests aims to research on the coefficient of brittle stress drop of several brittle rocks such as marble, red sandstone and granite are performed.

分别对大理岩、红砂岩和花岗岩等几种脆性比较明显的岩石进行了应力脆性跌落系数的试验研究。

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Drop your book bags on the marble floor, and then practice saying "muy bonita" when you see the view of the Pacific Ocean from your secluded balcony.

BBC: Daily deal: Relaxation in Puerto Vallarta, Mexico