Thefluctuation ofevaporating quantity andtheleakage pho nomenon ofthe materials wereseparatelyanalysedforthe external circulation evaporators and some improvements were proposed .
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美
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通过对外循环蒸发器的蒸发量波动及跑料现象分别进行了分析,提出了相应的改进措施。
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海词词典,十七年品牌