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

介绍清净管体注射的设计与制造方法,并阐具的工过程。

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.

磷中输送稀磷澄清槽淤渣的泥浆泵,各厂的运行情况都不够理想。