altitude angle

From morning to dusk, the sunshine changes its direction and altitude angle, penetrating through the different openings.

以日出到日落，不同方向和高度角的阳光射入各个洞口。

With the minimum frictional power loss and the maximum "the minimum oil film thickness" as the optimum objectives, the marine stern tube bearing is optimized by adjusting the length to diameter ratio, the clearance ratio and the altitude angle ratio.

并分别以功耗最小、最小油膜厚度最大为优化目标，通过改变长径比、间隙比、偏角比对尾管轴承进行了优化设计。

The altitude angle and the azimuth angle between star and observation point are used to realize the dynamic calibration.

利用恒星相对于观测点的方位角和高低角实现对焦距的动态校准。

The Improved Algorithm for Elevation Angle Estimates of Low Altitude Radar Target

一种改进的雷达低空目标仰角估计算法

There is no still a set of complete theories that involve the national economy and the social development at macroscopic altitude or with the angle of view which can overall plan the city and the countryside.

并没有一套完整的理论是站在国民经济和社会发展全局的宏观高度，站在统筹城市与农村高度发展的角度来综合考虑的。

The surface albedo had a typical exponential relationship with solar altitude angle. The linear or exponential relationship existed between surface albedo and soil water content.

晴天地表反照率与太阳高度角呈指数关系，与土壤含水量呈指数或线性关系，两者共同解释了地表反照率变化的68%左右。

It applied visual programming software to work out relevant parameters of artificial rainmaking and hail removal, such as the rainmaking rocket launch time, target points, elevation, altitude angle and quantity of rockets needed etc.

采用可视化编程软件，计算出进行人工增雨、消雹、消雨发射火箭弹作业时间、作业点、仰角、高度角、火箭弹用量等参数，研制出人工影响天气指挥系统。

The paper discusses low-angle target altitude measurement using multipath effect.

本文从利用多径效应的角度研究低空目标的高度测量.

On sunny days, the surface albedo decreased with the increase of solar altitude angle, and it almost became a constant when solar altitude angle was more than 40 °.

晴天地表反照率随太阳高度角的增大而减小，当太阳高度角大于40°时，地表反照率趋于稳定。

As a large number factors affect ocular UV exposure, including the solar elevation angle, altitude, ground reflection, sky scattering and facial anatomy etc, so individual ocular UV exposure quantification has been severely limited for a long time.

由于眼部紫外线暴露的影响因素较多，包括太阳高度角、海拔、地面反射、天空散射和面部解剖特征等，因此长期以来，个体眼部紫外线暴露的定量一直受到较大的限制。

Considering the effects of solar altitude angle and soil water content, a two-factor parameterization formula of surface albedo was developed preliminarily.

据此，建立了内蒙古荒漠草原晴天地表反照率随太阳高度角与土壤含水量变化的双因子参数化方案。

Numerical simulation was performed on muzzle blast flow of vehicle-mounted howitzer with muzzle brake. While howitzer fired under the conditions of an altitude angle of 17 ° and direction angle of 0 °, complex wave structure of muzzle blast flow was obtained.

对装有炮口制退器的车载炮膛口冲击流场进行数值模拟，得出高低角为17°，方向角为0°情况下膛口及车身上流场复杂波系结构。

When observing the object on ground from space, with the variation of the atmosphere, the solar altitude angle as well as the illumination of the scenery on ground affect the definition of the image on the CCD focal plane.

空间对地目标观察时，由于大气环境、太阳高角及地面景物亮度的变化影响地物在靶面上成象的清晰度。

Instead, they had their eyes glued to the cockpit instrument panel, which showed key information such as airspeed, altitude, angle of flight, and fuel and oxygen supply.

相反，他们粘在驾驶舱仪表板，这表明，如空速，高度，飞行角度的关键信息，以及燃料和氧气供应他们的眼睛。