Operation test of emergency switching-off device for oil pump and ventilator (bilge pump) in engine room.
机舱风、油（舱底泵）应急切断装置操作试验。
Very little room was available to get to valve number 1 for emergency operation.
当遇到紧急情况时，就感到没有足够的空间可以接近1号阀门（参见左图）。
Objective To explore a quick, effective and safe air sterilization method for the operating room in the case of consecutive emergency operation by air purification device without layer flow.
目的探讨无空气层流净化设备手术室连台手术间快速、高效、安全的空气消毒方法。
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