unsteady rate 中文意思是什麼
unsteady rate
解釋
不穩定產量-
For a soil or rock of water - lacked, a heat transfer theoretical model is developed, which is a steady or unsteady, the results show that reservoir temperature, thermal diffusion coefficient, inlet temperature, flow rate of and run time of ground source heat pumps have an effect directly on heat transfer process of dhe. it can deduce that intermit running is favorable for this type of soils and rocks
對于貧含水地下巖土層建立了穩態與非穩態傳熱的理論模型,分析結果表明,巖土層的熱儲溫度、導溫系數、埋地換熱器進水溫度、流量以及地源熱泵系統的運行時間或開停機比,都對埋地換熱器的傳熱過程產生直接影響,可以推斷,對于該類型巖土層的地源熱泵系統,採用間歇運行將是有利的。 -
But now it still has some problems, such as the unsteady quality of wheat, the lower performance rate of booking farming, the small amount and scale and so on
目前我國訂單農業還存在小麥質量不穩定、訂單履約率低、信息不透明,數量和規模較小等問題。
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