例句與造句

1. 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
   摘要主要針對(duì)pz900高溫平板閘閥閥體試壓滲漏的問題，利用鑄造工藝?yán)碚摵徒饘倌淘?，結(jié)合計(jì)算機(jī)輔助設(shè)計(jì)，對(duì)閥體的鑄造工藝進(jìn)行了分析，找到了產(chǎn)生缺陷的根本原因，解決了該件的滲漏問題。
2. It's difficult to find flat valve in a sentence. 用flat valve造句挺難的