meridian circle

meridian circle的基本解释

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子午圈, 顶点, 高潮, 全盛期, 子午环

与meridian circle相关的网络例句 [注：此内容来源于网络，仅供参考]

The angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body.

从观测者所在的子午线到给定天体的子午线沿着天赤道的角距离。

A meridian is an imaginary circle.

子午线是假想出来的一个圆圈。

In order to control the flow separation by reducing the diffusion factor and enlarging the diameter of inner circle, the meridian plane profile of the return channel was redesigned, which is achieved by substituting arbitrary curve for the circle with no change of the axial length of the stage. Bezier curve with eight parameters was chose to describe the shape of meridian plane profile, and the optimization of the meridian plane profile was implemented combining back-propagation neural network with genetic algorithm.

改进的主要思路是减小弯道前半部分通道的扩压度，并同时加大弯道出口内侧的转弯半径，主要做法是在不增加整级轴向尺寸的前提下，用任意曲线取代传统弯道的同心圆环结构，给定弯道回流器子午型线的外侧型线，采用Bezier曲线对内侧型线的2段曲线进行参数化描述，利用遗传算法和反向传播(back-propagation，BP)神经网络相结合的方法对内侧型线进行优化，得到新的弯道回流器子午型线。

The meridian circle telescope is used to determine the times at which stars cross the the meridian.

这台望远镜可用来探测星星越过子午线的确切时间。

Making use of structural characteristics of the Lower Latitude Meridian Circle and the error theory of this instrument, we have developed a method used to measure directly instantaneous atmospheric refraction, and moreover built a local observational astronomical refraction model toward the east, south, west and north of Yunnan observatory that is classified according to the star's spectral type.

阐述了云南天文台探讨出的利用低纬子午环的观测原理，在不同方向和不同天顶距直接测定瞬时大气折射值的一套方法，并给出了用实测数据在东、南、西、北4个方向建立的按恒星光谱型分类的大气折射实测模型。

与meridian circle相关的网络解释 [注：此内容来源于网络，仅供参考]

meridian circle：子午圈

meridian angular aberration 子午角像差 | meridian circle 子午圈 | meridian direction 子午方向

meridian circle：子午环

归经:Meridian tropism | 子午环:meridian circle | <<梅丽迪恩>>:Meridian

meridian circle：子午仪;子午线

meridian astronomy 子午天文[学] | meridian circle 子午仪;子午线 | meridian instrument 子午仪;中星仪

meridian circle：子午杯

.原子钟 atomic clock | .子午杯 meridian circle | .超高速实验设备 hypervelocity experimental facility

horizontal meridian circle：水平子午仪

horizontal machining centre 卧式加工中心 | horizontal meridian circle 水平子午仪 | horizontal metal cold-extruder 卧式金属冷挤机