系统设计采用了钢制直连式（或联轴器）风机以及不锈钢整体式空气净化装置。
Direct-connected steel fans and integral stainless steel air cleaning equipments are chosen in the system designing.
系统设计采用了钢制直连式（或联轴器）风机以及不锈钢整体式空气净化装置。
Direct-connected steel fans and integral stainless steel air cleaning equipments are chosen in the system designing.
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