为减少水耗可以用循环水，供水中最有害的杂质是阴离子高分子量物质，会大大减少助留剂的效率，甚至使它们完全失效。
The most detrimental impurities in the feed water are anionic high molar mass substances. They can greatly reduce the efficiency of the retention AIDS or even make them completely ineffective.
此外，这阐明了共代谢原理和适宜作高分子量多环芳烃共代谢底物的物质。
The principle of the co metabolism and the optimal material used as co metabolic substrate were demonstrated in this paper.
QQ-88超级螺杆清洗剂是一种高分子量的塑化物质。
The QQ-88 super screw rod cleansing agent is one kind of macromolecular weight plastified material.
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