Serials of naphthalin and tripolycyanamide have low water reducing efficiency.
萘系与三聚氰胺系减水率较低。
Documentation takes time and requires communication, potentially reducing efficiency.
编制文档占用时间，并需要交流，可能降低效率。
The results indicate that appropriate increase in fineness of gypsum particles will improve the water-reducing efficiency of superplasticizers.
结果表明适当增加建筑石膏细度可提高减水剂的使用效率；
Serials of naphthalin and tripolycyanamide have low water reducing efficiency, bad flow degree under low water cement ratio and sharp loss of concrete slump.
萘系与三聚氰胺系减水率较低，在低水灰比下流动性较差且坍落度损失较大，不利于商品混凝土的运输和施工。
The effect of molecular weight, molecular weight distribution, molecular structure of the polymer and behavior of the crude oil on drag reducing efficiency are represented.
本文讨论了减阻剂聚合物的分子量、分子量分布、分子结构以及不同物性的原油对减阻率的影响。
Tests indicate that the product of the invention has certain water reducing property and higher water reducing efficiency to cement, and the highest water reducing rate can reach over 20%.
测试表明本发明产品具有一定的减水性能，对水泥减水效率较高，最高减水率可高达20％以上。
The property tests and application results showed that DSMPA had excellent dispersibility, emulsifying ability and high viscosity reducing efficiency for emulsifying Daqing Heidimiao heavy crude oils.
性能测试和应用结果表明，该产物具有良好的乳化力和分散力，对大庆黑帝庙稠油具有较好的乳化降粘效果。
The property tests and application results showed that DSMPA had excellent dispersibility, emulsifying ability and high viscosity reducing efficiency for emulsifying Daqing Heidimiao heavy crude oils.
性能测试和应用结果表明，该产物具有良好的乳化力和分散力，对大庆黑帝庙稠油具有较好的乳化降粘效果。
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