望远镜

What's the primary of a reflecting Telescope?

反射式望远镜的主镜是一个？

With the astrophysics of the the rapid development, many of the Observatory in the construction of a large reflecting telescope, and select the best of all the host sites.

随着天体物理学的迅速发展，很多天文台都在建造大型的反射望远镜，并选择条件最佳的台址。

What's the major part of the Reflecting Telescope?

反射式望远镜的主镜是一个？

The reflecting telescope therefore remained a curiosity for decades.

该反射式望远镜，因此仍然是一个好奇心数十年之久。

In the second half of the eighteenth century, in the hands of James Short and then William Herschel, the reflecting telescope with parabolically ground mirrors came into its own.

在下半年的十八世纪，在手中的詹姆斯短，然后威廉赫歇耳，反射式望远镜与parabolically地面反射镜来到它自己。

A reflecting telescope so constructed that the light is led to a plate holder or ''.

构造成光线被引入盘状容器或光谱摄制仪的折射式望远镜。

A reflecting telescope so constructed that the light is led to a plate holder or spectrograph.

构造成光线被引入盘状容器或光谱摄制仪的折射式望远镜。

The main advantage of reflecting telescope there is no chromatic aberration, when the objective lens when using parabolic, but also can eliminate spherical aberration.

反射望远镜的主要优点是不存在色差，当物镜采用抛物面时，还可消去球差。

It also makes analysis on the connection of Newton's prism experiments, and describes how Newton proved these propositions by taking advantage of these experiments in the article. As well the author makes analysis and generalization on the make of Newton's reflecting telescope and Newton's

首先，在对《光学》认真研读的基础上，首次对其光的颜色理论部分的大量棱镜实验之间的关系进行了分析，从而说明牛顿是如何利用这些实验证明这些命题的；其次，笔者在前人研究的基础上，对反射望远镜的制造和牛顿环理论进行分析和总结，力求描述得清楚全面；最后，鉴于国内外对牛顿光本性认识的研究存在分歧的情况，笔者对惠更斯和牛顿的相关著作进行了详细考察，对他们的光本性观点进行了系统的研究和比较，从而指出那种只因牛顿

A C frame a larger diameter reflecting telescope, through the transformation with different sub-mirror, access to the main focus of the system, Cassegrain system and the fold-axis system.

一C架较大口径的反射望远镜，通过变换不同的副镜，可获得主焦点系统、卡塞格林系统和折轴系统。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。