常用短語

secondary air diverter valve二次空氣轉(zhuǎn)流閥

secondary air fan二次風機

secondary air duct二次風道

secondary air supply二次空氣供應(yīng)

SAME Secondary Air Management Control二次空氣控制系統(tǒng)

secondary air return二次回風

boiler secondary air blower鍋爐二次鼓風機

secondary air piping二次風管道

secondary air pollutant二級空氣污染物；二次大氣污染物；次生空氣污染物