1) zenith distance
天顶角距
2) zenith distance
天顶距
1.
Then the zenith distance and slope distance can be worked out even if the effects of erect refraction of atmosphere does exist, thus extending the adaptability of zenith distance and enhancing its accuracy in trigonometrical leveling.
本文通过分析大气密度与大气垂直折光系数的关系 ,推导出消除了大气垂直折光影响的天顶距和斜距计算公式 ,既拓宽了天顶距的适用范围 ,又提高了三角高程测量成果精度。
3) apparent zenith distance
视天顶距
1.
The demands on accuracy of measured apparent zenith distances and the necessity of elimination of systematic errors during the time of determining the astronomical refraction and building the radio wave refractive delay corrective model are described concisely.
简述了测定瞬时大气折射值以及建立电磁波折射延迟改正模型时,对视天顶距测定值的精度要求和消除系统误差的必要性;根据新的仪器误差理论,文章采取与国外高精度测量仪器的误差测量方法相对比的方式,介绍了专用测量仪器的各种主要误差的测定方法及其所能达到的精度;还介绍了在不同方位的观测时,视频CCD图像中星像的分布情况。
4) meridian zenith distance
中天顶距
5) zenith angle
天顶角
1.
WT5”BZ]Angular separation of real zenith angle beacon and project laser due to atmospheric dispersion is calculated in this paper.
计算了由于大气色散效应造成的信标光与发射主激光的实际天顶角之间的角间距 ,其中考虑了天气条件、地理位置、发射天顶角和信标波长等影响因素。
2.
The relation between the zenith angle and the mean photon number for security of a satellite-to-ground QKD system based on the WCP source against PNS attacks which operates with the optimal eavesdropping strategy is provided.
以基于WCP光源的星地QKD系统为研究对象,推导了在PNS攻击者采用最佳窃听策略进行窃听时,保证密钥绝对安全的最大天顶角和可采用的平均光子数之间的关系。
3.
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.
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。
6) Large zenith angle
大天顶角
补充资料：红油天顶
红油天顶
[原料] 水发天顶250克。
[调料] 黄酒、酱油、糖、麻油各2克、盐、香醋、味精各1克，胡椒粉0.1克，辣油5克，芝麻酱3克。
[操作程序]
1．天顶入沸水锅烫一下捞出，用净水浸凉，沥去水分。
2．将黄酒、酱油、盐、糖、胡椒粉、香醋、味精、麻油、辣油、芝麻酱放碗里调匀，放入天顶拌一下即可装盘。
[特色点评] 红亮，脆嫩，鲜香。天顶是猪口腔中的上腭，形态别致，口感脆嫩。
[要领提示] 烫水不能时间长，调味要适口。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。