调查人员发现，他们用一个重金属制的轮状水龙头碾碎砖头，将碎石藏在存放个人物品的塑料盒内。
Investigators found that the men had disguised the holes by using the heavy metal wheel to crush up the rubble and hide it in plastic boxes used to store their personal possessions.
结合碎石土的特点，采用细粒土含量控制试样的含水量，在同一竖向压力下制样。
According to the feature of gravel-soil, the water content of sample is controlled by granule soil content and sampled under the same vertical pressure.
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