Result shown no-tillage and traditional tillage treatments had little water storage but higher water use efficiency.
结果表明，免耕秸秆覆盖和传统耕作秸秆覆盖两个处理土壤贮水量少，但水分利用效率高。
The research indicates that chilled water thermal storage system has remarkable economic efficiency and social efficiency.
研究表明水蓄冷空调具有显著的经济效益和社会效益。
The phase-change thermal storage type water tank of the heat pump water heater has the advantages of high heat transfer efficiency and large thermal storage density.
本发明的相变储热式热泵热水器水箱具有传热效率高、储热密度大的优点。
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