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The results show that the detectable stellar magnitude limits linearly increase with observing height and solar zenith angle. 结果表明：可探测星等极限值随观测高度和太阳天顶角的增加接近线性增加；
Transmission of Solar Radiation by Clouds over Snow and Ice Surfaces: A Parameterization in Terms of Optical Depth, Solar Zenith Angle, and Surface Albedo. 云和冰地表云对太阳辐射的传输:用光学厚度,太阳高度角和地表反照率参数化。
The solar zenith angle dependence of desert albedo 太阳天顶角沙漠反照率的依赖关系
solar zenith angle 太阳天顶角
To a great extent, the dispersion of coherence length is the same as zenith angle. 相干长度的偏差趋势与天顶角偏差相似。
The coherence length revised is smaller than the classical, because the revised zenith angle is larger than the launch angle. 修正后的相干长度总比传统相干长度偏小，因为修正后的天顶角比发射角大。
Worm gears are adopted for driving rotational motion along azimuth angle and power screws are used for raising zenith angle. 蜗轮与蜗杆被用来驱动方位角的转轴，仰角的转动则使用螺杆。
As expected, the measured brightness temperatures change with view zenith angle, view azimuth angle, and the Sun position. 地面亮度温度的测量值随观测天顶角、方位角和太阳位置而改变。
For similar monthly range of viewing zenith angle, the errors can vary from 45% and 340% in visible and near-infrared bands, respectively. 相近月观测天顶角全距，相对误差在可见光、近红外光波段也可能变化超过45%25和340%25。
Based on the atmospheric transmission model, through the actual ray track, the zenith angle is revised, which is a complicated function with launch angle and altitude. 摘要基于大气传输模型，采用光线传输的实际轨迹对天顶角进行修正处理，得出天顶角随发射角和传输高度的变化复杂函数。
The results show that the sky radiance increment rises rapidly while viewing zenith angle is near to 90 deg., and the larger the albedo of the earth's surface is, the more obvious this effect appears. 结果表明：当观察天顶角接近90度时，天空亮度增量迅速增加，即存在着“临边增亮”效应，而且地表的反照率越大，这种效应就明显。
The plant was growing at an angle. 植物呈一定角度生长。
This instrument has the ability to measure polarized reflectance and bi-directional reflectance of targets at various viewing zenith angles,light incidence zenith angles and azimuth angles. 本研究利用多角度光度计实测了玉米单叶的偏振反射比与二向反射比数据。
Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
We can use solar energy to do many things today. 如今，我们可以利用太阳能做很多事情。
Rome's power reached its zenith under the emperor Trajan. 罗马帝国的势力在图雷真皇帝的统治下达到顶峰。
They accurately predicted solar eclipses. 他们精确地预告了日蚀。
It felt as if we had traveled from nadir to zenith. 感觉上我们好像已从天底走到了天顶。
The solar system was formed 4.5 billion years ago. 太阳系是四十五亿年前形成的。
He has reached the zenith of his career. 他已经达到了他事业的顶峰。