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词汇 gritting material
释义 gritting material
基本例句
砂砾材料,砂砾,粗砂
In order to improve the gradation and the quality of the filtering material, both sieved and blasted materials are used.And the quantity of gravel mined decreased.根据料场砂砾石级配特点和反滤设计要求,综合利用筛分料和爆破料改善反滤料的级配,进而提高反滤料的质量,同时减少反滤料的开采量。
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