沿管线读取通风调节器的温度读数，确定绝缘层的热增量和热损耗。
Determine heat gain and loss conditions in insulated ducting by reading register temperatures along a run.
呼吸阀安装在固定顶罐的通风装置，起减少油品蒸发损耗，控制储罐压力的作用，它也可与阻火器联合安装使用。
Breathing Valve shall be set on roof of the fixed-roof tanks, which can make the tanks safe and reduce the loss of the stored liquids as evaporation.
结果表明，用排气扇通风具有耗电低、降温均匀、水分损耗低和操作简便等优势，适用于冷空气资源充足的地区。
The results showed that exhaust fan has the advantages of low consumption of energy and moisture, simple operation and lowering temperature uniform. Ventilation with exhaust fan is fit for cool area.
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