热量变化率 heat gradient
The Shihezi cotton region of northern Xinjiang studied in this paper is our country most boundary of cotton. The primary disadvantage factor in this region is shorter growth season、heat change greatly in annual、usually suffer from delay cool damage.
本文研究区域石河子棉区所在的北疆棉区是我国植棉的最北界,主要不利因素是生长季较短,年际间热量变化较大,经常遭遇延迟型冷害,致使棉花生长缓慢,品质下降,最终不能正常成熟,产量降低,引起大幅度减产。
参考来源 - 北疆石河子棉区棉花延迟型冷害指标的田间试验研究·2,447,543篇论文数据,部分数据来源于NoteExpress
热量变化,就会产生风和雨。
在热水供暖系统中,调节阀是改变热媒流动阻力、传热量变化及控制系统的调节装置。调节阀的选型、使用涉及多方面知识。
A governing valve is the instrument for changing flow resistance and heat transfer flux of hot water, controlling pressure and temperature of heating system.
建立了钻井单位井深换热量与钻井深度、流量变化关系的计算模型。
A mathematic model for the relationship between the rate of heat transfer per meter borehole and the depth of borehole as well as the flow rate was built.
All right, so this is the heat flowing in or out of the system, and these are all functions of state.
好的,这就是系统的热量变化,这些都是态函数。
Now, the coefficient that relates the amount of heat in to the temperature change is obviously going to be different for these two cases.
在这两个例子中,很显然联系热量和温度变化的系数,是不一样的。
Carbohydrate has really shifted, and so people are eating more calories from carbohydrate before, sugars primarily, and that is coming primarily from added sugar, or that's at least one of the primary contributors.
碳水化合物也有明显的变化,比前人更多的从碳水化合物中摄取热量,以糖类为主,也就是说主要是添加糖类的食物,至少这是主要的来源之一
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