diurnal variation

常见例句

The result showed that the diurnal variation of temperature, irradiation intensity, net radiation as a curve in cotton canopy of two irrigation ways.
结果表明，在两种灌溉方式下棉花冠层内的温度、光照强度和净辐射日变化曲线均呈单峰线；
The momentum fluxes by VTand EC both have many apices, and smaller at dawn and dusk than the rest of a day, whichacts in accord with the diurnal variation of the wind speed in grassland.
变分法与涡动相关法给出的动量通量日变化都呈现多峰型，动量输送在白天和夜间较大，而日出和傍晚前后较小，与草原上风速的日变化特征相吻合。
Finally, the relationship between the turbulent heat and momentum exchange coefficient and the diurnal variation of the Richardson number is discussed.
文中还对湍流热量交换系数、湍流动量交换系数与理查孙数的日变化关系进行了讨论。