赤道仪

This was also the year they introduced the prototype FCT-150 fluorite triplet apochromat and the revolutionary EM-2000 mount which used electric clutches and had a direct read out of R.A. and Dec.

这一年也是FCT-150萤石三片式APO折射镜和革命性的EM-2000型赤道仪问世的时间，EM-2000使用电子装置可以直接读出赤经/赤纬度。

Takahashi also makes observatory telescopes which include: 350mm hyperbolic astrographs, 300 and 400mm Cassegrains, 200, 250 and 300mm triplet apochromatic refractors and the large EM-3500 mounts to carry them.

高桥也制造天文台用的350mm双曲面镜，300和400mm的Cassegrains， 200，250和300mm的三片APO折射镜以及支撑它们的大型EM-3500赤道仪。

And you have already studied something about Barlow Lens and Equator Mounts...

而且你已经了解了一些巴洛镜和赤道仪的知识。。。

It was the first application of his invention of the 'equatorial mount' and 'clock drive'.

这是首次应用，他发明的'赤道仪』和『时钟驱动器'。

Any jerkiness and backlash in the mount's motions can also spell doom, especially if you lack a clock drive.

赤道仪运转中的不稳定或是速度过快都是会招致恶果的，尤其是当你没有钟转仪时。

In the Northern Hemisphere, locate Polaris in the sky and Point the Polar axis of the mount in the direction of Polaris.

在北半球，从天空中找到北极星并使赤道仪的极轴望远镜指向北极星的方向。

The data of the ionospheric critical frequencies, f0F2 and f0E, observed by a Digisonde Portable Sounder (DPS-4) at Zhongshan station of Antarctica in 1996, the hemispheric power index and the midnight equatorward boundary of the aurora estimated by the observation of American NOAA and DMSP satellites are used to examine features of the polar ionosphere.

本文利用1996年的电离层数字测高仪DPS-4所测的f0F2、f0E以及美国NOAA和DMSP卫星观测估算的半球功率指数和午夜极光区赤道侧边界纬度等资料，考察中山站电离层的极区特征。

Equatorial Mount and Clock Drive, also showing the tapered tube/ball counterweight system to minimize flexure of the telescope tube at various positions.

赤道仪和时钟驱动器，也显示锥形管/球抗衡制度，以尽量减少柔性的望远镜管在不同的位置。

This is a testament to its timeless design. Then followed by the introduction of famous Sky Patrol portable mount in 1981, this mount was a favorite for eclipse chasers. It features a polar alignment telescope in the R.A.

这是一款经得起时间检验的经典赤道仪。1981年又开发了便携式巡天赤道仪，极大地满足了爱好者们观看日月食，该产品的特色是在R.A。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。