Venting smoke system covers stairs, walkways, aisles, packing area, material area, yeast distill area and drying tower.It has mechanical wind renewing and venting smoke by machine on the roof.是什么意思_Venting smoke system covers stairs, walkways, aisles, packing area, material area, yeast distill area and drying tower.It has mechanical wind renewing and venting smoke by machine on the roof.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句