英语词汇“deep well working barrel”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	deep well working barrel
释义	deep well working barrel un.深井工作泵；🌏深井泵工作筒
随便看	relief for error of enforcement relief for pioneer industries relief for refugee relief for work-caused injuries relief foundation relief frame relief fraud relief from relief from action relief from double taxation relief from duty relief from income tax relief from law relief from obligation relief-from-royalty approach relief from taxation relief from tiresome journey reliefful relief fund Relief fund and social relief relief fund raising relieffund reserve relief fund reserve relief funds relief gas