英语词汇“downhole back flow valve”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	downhole back flow valve
释义	downhole back flow valve 井下回流阀
随便看	narrow mouthed bottle narrow-mouthed bottle narrowmouthed flask narrow mouthed flask narrow-mouthed flask narrow-mout-hed jar narrow-mouthed toad narrow-mouthed toads narrowmouth flask narrow mouth flask narrow-mouth flask narrow mouth reagent bottle narrow-mouth reagent bottle narrow movement narrow muscle fibers narrow-nagle lens narrow-narrow gate narrow nationalism narrow national policy narrow neck narrowneck bottle narrow neck bottle narrow-neck bottle narrow neck container narrownecked