laxite
... laxation松驰 laxite机械碎屑岩 laxity松驰 ...
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由于石英碎屑岩的强度高、硬度大和二氧化硅含量高，造成机械加工设备磨损严重。
The equipment was heavily damaged due to wearing of the quartz-clastic rock with high strength, high hardness and great content of SiO_2.
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