1. Design and manufacture methods of injection mold for the defecator body were introduced, and working process of mold was stated. 介绍了清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。
2. The operation of the slurry pumps for transferrin g sludge in the dilute phosphoric acid defecator in the phosphoric acid production is mostly not satisfactory. 磷酸生产中输送稀磷酸澄清槽淤渣的泥浆泵,各厂的运行情况都不够理想。