sub aeration flotation machine 液下充气式浮选机
Aeration Machine 曝气机
Analyzing actuality and disadvantage in barn aeration design, author suggests generalizing round-type barn and aeration in upright with machine.
通过对粮仓通风设计现状及弊病的分析，笔者建议推广圆型粮仓采用机械立式通风。
DZQ series vacuum packing machine is semi-automatic vacuum packaging equipment. Order the assumed processes of vacuum extraction, sealing, printing, cooling and aeration.
DZ Q系列真空包装机是半自动真空设备，只须按下真空室盖即自动按设定的程序完成抽真空、封口、印字、冷却、排气的全遇程。
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