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第一是研究铁路空调客车通风系统的控制方法。
One is the control method of air conditioner system .
youdao
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该奖项由新型的因需控制通风系统浩盾M。
The award went to the new demand based ventilation system, Halton M.
youdao
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该奖项由新型的因需控制通风系统浩盾M。
The award went to the new demand based ventilation system, Halton M.
youdao