英语词汇“necessity existing”的翻译、意思、用法、释义-英汉汉英双解词典

单词	necessity existing
释义	necessity existing 存在必要性
随便看	stope matting material stop emergency trip fluid stopen stop end stop engine Stop engine! Stop engine port! ST_opening-and-closing_locking-and-bolting ST_opening-and-closing_unfastening-and-opening stop entirely stope of coal mines stope ore drawing stope ore pass stope parameter stope parameters stope pillar Stop equivocating stoper stope raise stope renovate stoperhammer stope roadways with high stress stope roof stope room Stop error