retention aids的用法和样例：
例句
- The retention system has also shifted from single polyacrylamide to microparticle reten-tion systems.
常用助留剂已从单一聚丙烯酰胺逐渐过渡到微粒和超微粒系统。 - The results show that the suitable selection of retention agent and its cofactor was very important.
结果认为选用适当的助留剂和改进助留辅助剂非常重要。
retention aids的相关资料：
临近单词
retentionist
retention
retention of subject matter
Retention Categories Summary
retention and drainage agent
retention-water properties
retention requiring purgtion
retention of fetal membranes
retention height of stumping
retention of phlegm and fluid
retention of sodium and water
retention and drainage system
