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与制造方法,并阐述了模具工过程。

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.

磷酸生产中输送稀磷酸澄渣泥浆泵,各厂运行情况都不够理想。