during case中文
持續時間角色
例句與用法
- Abstract : this paper introduced few kinds of problems or complicated conditions which were liable to occur during casing section milling operation , meanwhile , discussed basic reasons for such problems and provided corresponding methods to solve them
文摘:介紹了套管段銑作業中易出現的幾種問題或復雜情況,探討了產生這些問題的基本原因,并提出了解決問題的相應對策與措施。