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Furniture making tools machinery
中央空调用的制冷剂有那几种呢_百度知道
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Furniture making tools machinery
活塞式 螺杆式和离心式机组用的制冷剂有那几种制冷剂有:F22 F134A比较老的机型还在用F12(F代表氟利昂) 吸收式机组的制冷剂用的是溴化锂溶液 ...
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