基本解釋止回閥，[機(jī)] 背壓閥英漢例句雙語(yǔ)例句Casing back pressure valve plays a important role in well cementing operation as a casing accessories.套管回壓閥作為一種簡(jiǎn)便的套管附件，在固井施工作業(yè)中起著重要作用。According to flow in a different, balanced spool valve the pressure can be pre-pressure, can also be a back pressure valve .根據(jù)流向不同，平衡閥芯所受的壓力可以是閥前壓力，也可以是閥后壓力。An automatic back pressure adjustment complex valve combining hydraulic control check valve, overflow valve and auto-adjusting back pressure valve has been developed.開(kāi)發(fā)了一種集液控單向閥、溢流閥和自調(diào)整背壓閥于一體的背壓自調(diào)整復(fù)合閥。back pressure valve更多例句詞組短語(yǔ)短語(yǔ)back -pressure valve 止回閥;[油氣]回壓閥;單向閥;背壓調(diào)節(jié)閥angle back -pressure valve 背壓角閥;違壓角閥;負(fù)壓角閥dry back -pressure valve 干式布袋濾塵器e back -pressure valve 背壓角閥hydraulic back -pressure valve 液壓止回閥;水壓逆止閥back pressure valve更多詞組專業(yè)釋義機(jī)械工程違壓閥背壓閥