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R.J. Gurney K. Blyth P.J. Camillo 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1984,4(11):227-230
An energy and moisture balance model of the soil surface was used to estimate daily evaporation from wheat and barley fields in West Germany. The model was calibrated using remotely sensed surface temperature estimates. Complete atmospheric boundary layer models are difficult to use because of the number of parameters involved and a simplified model was used here. The resultant evaporation estimates were compared to eddy correlation evaporation estimates and good agreement was found. 相似文献
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用分级淬火油来控制工件变形好富顿国际公司R.J.BRENNAN分级淬火油这个名词是1942年首先提出来的。它是指将钢件由奥氏体状态放到温度比Ms略高一点的介质中进行淬火。钢件放在其中的时间恰好使各部分温度平衡,随后放在空气中冷却,从而减少表面和芯部转... 相似文献
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