增壓pre urization system: 增壓系統(tǒng)sandwich pre urization system: 分層加壓系統(tǒng)stair pre urization: 樓梯加壓stair pre urization system: 樓梯加壓送風(fēng)系統(tǒng)zone pre urization system: 分區(qū)加壓系統(tǒng)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯