... 硬度试验机 hardness testing machine 硬度单位 hardness unit 硬度单位 hardness unit ...
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The results have shown that the hardness, water content and unit weight of soils are heavily affected by traveler activities for sightseeing beyond the limited roads.
结果表明：游客越出游道观光对游道外缘土壤的硬度、水分含量及容重产生了较大的影响。
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