The calculation of shadeless flat energy absorber's optimum angles 平面采光面无阴影影响最佳角度的计算
It also reveals under the condition of shadeless disposal more water used, and the temperature at about 14 ∶ 00 is obviously much higher than any other situations. 无遮荫处理利用较多水分,以及土壤温度在14:00点左右的时间明显高于所有的遮荫处理。