英语词汇“gradual sagging roof”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	gradual sagging roof
释义	gradual sagging roof 缓慢下沉顶板
随便看	fixed-price lump-sum contract fixed price method fixed price movement fixed price offer fixed-price offer fixed-priority scheduling fixed priority scheme fixed prism fixed prison term fixed probability vector fixed product area fixed-product area fixed product cost fixed production coefficient fixed production platform fixed production system fixed product layout fixed profit quotas fixed program fixed-program fixed program computer fixed-program computer fixed program machine fixed-program machine fixed programme