drainage material
... 排水系数：dewatering coefficient 排水物料;疏水物料：drainage material 排水物料：drainage material ...
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前言： 本文应用物料平衡的原理，阐明国家环境保护局制定的“八·五”环境试报点表中有关用水、排水指标之间的关系。
The paper, based on the principle of material balance, illustrates the relationship between indexes of water supply and drainage in environmental statistical trial report forms, which is set by.
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