For sampling the borehole or cut pavement potholes, the same type of material should be used to fill the compaction, sampling the moisture left behind should be absorbed by cotton yarn, etc. to be dried and then replenished（对取样的钻孔或被切割的路面坑洞，应采用同类型材料填补压实，取样时留下的水分应用棉纱等吸走待干燥后再补充）。