风机是矿用隔爆变频器的主要散热部件，工作环境恶劣、故障率很高。
Fan is the main cooling part of inverter, which works in bad condition, and has a high fault rate.
选择矩形翅片圆管束热交换器作为激光器的散热部件，并进行了换热计算。
Rectangle fin circle tube heat exchanger is chosen as the laser's radiator, and its conducting heat is calculated.
所述冷却装置使用冷却循环中的冷却部件来构造，所述冷却循环使冷却剂在散热部件和所述冷却部件之间循环。
The cooling unit is made using a cooling part of a cooling cycle which circulates a coolant between a heat-radiating part and the cooling part.
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