查询词典 zenith

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。

This point is on the tropic of Capricorn , which is the most southerly latitude（纬度,经度是longitude） reached by the sun, here the sun will be at the zenith each year on midsummer day.

让我们回到上世纪60年代，理查德·奥巴瑞(RichardO'Barry)的名字就海豚的训练领域来说，算得上是全世界最有影响力的权威人士，他曾经以演员和训兽师的身份活跃在非常受欢迎的电视节目《海豚的故事》的拍摄现场……如今已经过去40多年的时间了，奥巴瑞却仍然保持着自己对海豚那异于常人的支配能力，通过驯兽师与海豚之间的合作表演，来赢得电视观众心满意足的笑声。

Zenith delay parameters of the choice of the number of refraction of the troposphere has a greater impact.

天顶延迟参数个数的选择对对流层折射有较大影响。

An unvaried pall of cloud muffled the whole expanse of sky from zenith to horizon.

一望无际的云幕蒙住了从天顶到地乎线的整个夜空。假

By the same method we also obtain the distribution of the lunar zenith distance versus the occurring probability of earthquakes.

同样的方法，可得地震的月球天顶距地震频度分布。

The difference between the observation atmospheric refraction and Pulkovo table is about 15 arc second at the zenith distance of 84 degree.

在天顶距84°时，与普尔科沃大气折射表的差值约为15。

But the result also shows that with the increase of the propagation distance and the zenith angle, the fluctuation index is different so the classical Rytov's method is not applicable.

但随着天顶角的增大，传播距离的增加，其结果有所不同，经典Rytov方法也将不再适用。

Analysis results on the one hand showed consistency between the classical Rytov's method and the modified one, but they also showed the little difference with the increase of the propagation distance and the zenith angle, which implied that the classical Rytov's method was not applicable.

但随着天顶角的增大，传播距离的增加，闪烁强度的表现结果有所不同，这时的经典Rytov方法也将不能适用。

The method does not depend on strict local parameters and precise instruments, while the observational principle is relatively simple. An experimental observation was carried out with a simple telescope with large field of view at Xinglong station of NAOC at the end of 2007. The atmospheric refraction from the zenith distance of 44.8 degree to 87.5 degree is gotten by the differential method, which proves the feasibility of the method tentatively.

该方法不依赖于严格的地方参数和复杂精密的观测仪器，并且观测原理相对简单。2007年底，利用一台简易的大视场望远镜在兴隆观测站进行了试验观测，根据较差方法实测得到真天顶距44.8°至87.5°的大气折射值，初步证明了大气折射较差测量方法的可行性。

According to the engineering practice, the theoretical basis and method that survey directly the horizontal distance and height difference by the total station system as fourth grade and below fourth grade control network are put forward instead of surveying slant distance and zenith distance.

摘要根据工程实践，提出了用全站仪直接测量平距、高差来代替测斜距、天顶距作四等及四等以下控制网测量的理论依据和方法，并以张河湾抽水蓄能电站施工控制网为例进行了比较计算。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。