[機(jī)械工程 照明 加熱] 止回閥(回壓閥,回流閥); 止回閥(反壓閥,逆止閥); 止回閥(逆止閥、回流閥); 止回閥(背壓閥,回流閥) check valve; back-pressure valve: 單向閥non-return valve(check valve): 逆止閥back pressure valve(non-return vale): 閥,止逆閥check (non-return) valve: 止逆閥oil return check valve: 回油止回閥下載手機(jī)詞典可隨時隨地查詞查翻譯