寒冷地区奶牛场太阳能热水工程和电热水槽应用效果的研究
李 欣,邢启明,齐 贺,栾冬梅
寒冷地区奶牛场太阳能热水工程和电热水槽应用效果的研究
Application of Solar WarmWater Project and Electric Heating Water Troughs
in Dairy Cow Farms in Cold Region
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