An effective method of putting mechanical components to implement bubble-removing in the sieve tray is found by experiments.
通过实验，成功地找到了在塔板上设置机械构件来实现消泡的有效方法。
2
Adding molecular sieve to coating can apparently improve its mechanical property.
将分子筛添加于包覆层中，可以很好的提高包覆层的力学性能。
3
The air exhaust type crushing and sieving device adopts an airflow separation system and reduces a sieve mesh, so that mechanical blockage can not be caused, and the working efficiency is enhanced.