仰角

Light distribution can be optimized by adjusting elevation angle of the lamp.

用户可以通过仰角的调整来满足配光的优化。

If you run on a treadmill, you may know that each 1 percent increase of elevation angle, you will expend 4 percent more energy.

如果你跑步机上运行，你可以知道，每一个百分之一增加仰角，你将花费更多的精力百分之四。

In comparison with existing models,the derived models possess higher accuracy,are applicable to high and low elevation angles and targets located in lower atmosphere and ionosphere,have no restriction of range,do not involve the problem of apparent elevation angle rate and are convenient in practice.

与现有模型比较，所得模型精度较高，适用于高低仰角，目标可在低层大气与电离层内，没有距离限制，不涉及视在仰角变化率问题，便于实际应用。

The relationship between the refractive error and the initial elevation of laser beam is calculated by an example.

通过实例，计算了折射误差与激光束初始仰角的关系，计算结果表明，低仰角时折射误差大，高仰角时折射误差小。

The reflection of the LO mode, RLO, and its ratio, RLO/RTO, with the reflection RTO of the LO mode increase with increasing angle of incidence. In the case of the polarized incident light,ωLO is a function of angle of incidence and polarization state of the incident.

在45°入射角附近，ωLO几乎与入射光的偏振方向无关；在这个临近角45°两侧，ωLO和入射光的偏振方向的关系呈现相反趋势：当入射角小于45°，ωLO随着入射光极化仰角θ的增大而减小，当入射角大于45°，ωLO随着极化仰角θ的增大而增大。

The plane layered model is the layered structure when the spherical curvature is considered infinity.

比较了球面分层模型和平面分层模型的仰角误差随传输高度和起始仰角的变化。

Elevation on the narrow beam angle of elevation measurements.

仰角靠窄的仰角波束测量。

Center frequency of the system is 280MHz with a bandwidth of 10MHz. The sample frequency is 2GS/s. The system shows the lightning VHF source in 2-D, and the error for azimuth is less than 1 and 3 for elevation.

系统能够给出闪电VHF辐射源的仰角和方位角二维发展图像，对方位角的测量精度大于仰角，从标定结果来看，系统对方位角的测量误差在1度以下，而对仰角的测量精度随着仰角的减小而降低，对所分析的高仰角闪电，仰角误差一般不超过3度。

The results showed that the red /blue color index during twilight changed evidently with AODs in lower atmosphere. When AOD was small, there was a maximum of the radiance at 450nm in the high view elevation angle. So the sky color at the zenith is blue. However, the maximum shifted to red wavelength (about 700nm) with the fall of view elevation angle.

计算结果分析表明，曙暮光时天空辐射强度的红蓝光颜色指数随近地层大气气溶胶光学厚度的变化显著；当τ较小时，太阳辐射随波长的变化显著，在高仰角450nm附近有极大值，天顶方向以蓝色调为主；而在低仰角极大值向红光方向移动。

It needs only once measurement result,and can converge to the real angle of target in certain initial error range.It is similar to the complex-angle method proposed by S.M.

这种方法仅用雷达的一次测量结果就能使仰角估计在一定的初始误差范围内自适应地收敛到目标的真实仰角。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。