通風(fēng)]止回閥 non return: 不歸零制(磁記錄); 止回alternating non-return-to-zero: 交替不歸零制ball non-return valve: 單向球閥; 球形止回閥; 球形止逆閥check (non-return) valve: 止逆閥double non-return valve: 雙向止回閥; 雙止回閥下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
