flat valve造句

Mainly directing against leaking of pz900 high temperature flat valve body with hydraulic pressure , utilizing foundry technology theory and metal solidification principle , combineing computer aided design , analyzed casting process and found out the defect causation , the leaking defect resolved
摘要主要针对pz900高温平板闸阀阀体试压渗漏的问题，利用铸造工艺理论和金属凝固原理，结合计算机辅助设计，对阀体的铸造工艺进行了分析，找到了产生缺陷的根本原因，解决了该件的渗漏问题。
It's difficult to find flat valve in a sentence. 用flat valve造句挺难的