Design and manufacture methods of injection mold for the defecator body were introduced,and working process of mold was stated.

介绍了净管体注射模的设计与制造方法,并阐述了模具的工作过程。

The operation of the slurry pumps for transferr in g sludge in the dilute phosphoric acid defecator in the phosphoric acid producti on is mostly not satisfactory.

磷生产中输送稀磷澄槽淤渣的泥浆泵,各厂的运行情况都不够理想。