In order to study charge distributions of fragments in spontaneous fission of 252Cf,a detector system,including a typical grid-ionization chamber and a ΔE-E particle telescope in which a thin grid-ionization chamber is served as the ΔE-section and the E-section is a surface barrier detector,was built up.
为研究252Cf自发裂变碎片电荷分布,建立了由屏栅电离室和ΔE-E粒子望远镜构成的探测器系统。
1/2b solar flare in 2005 January 20 was observed by the Yangbajing solar neutron telescope(SNT) and neutron monitor(NM), located at Yangbajing Tibet(90.
2005年1月20日羊八井太阳中子望远镜和中子监测器探测到与X7。
Research on Sub-Telescopes' Beams Parallel and Path Difference Adjustment to the Optical Aperture Synthesis Telescope
光学综合孔径望远镜中子望远镜平行性和光程差调整的研究
a telescopic view of the moon
从望远镜中见到的月亮
theodolite with central telescope
中间望远镜的经纬仪
We can use telescopes of only modest sizes.
我们可以用中型望远镜。
The object glass of a telescope must be accurately centered
望远镜的物镜必须精确置于中心上。
Some of these telescopes have glass lenses in them.
其中一些望远镜里安装着玻璃透镜。
Study on lightweight beryllium mirror of space solar telescope
空间太阳望远镜中的轻量化铍镜研究
periscope binoculars
潜望镜式双筒望远镜
Development of Au-Si Surface-barrier Charged-particle Telescope
Au-Si面垒型带电粒子望远镜的研制
He could make out why three men in the basket under the balloon and one of them was holding field-glasses.
他看清楚汽球下面的篮子里有三个人，其中一个正拿着双筒望远镜。
a telescope mounted on an east-west axis and used to time the transit of a celestial body across the meridian.
装在东西轴上用来安排天体的中天通过子午线的望远镜。
The Design of Cosmic Ray Tau Neutrinos Telescope and the Calibration of Photomultipliers
宇宙线τ中微子望远镜设计及光电倍增管的标定
long focus lens
长焦距（望远）镜头
Data Management System for 2.4m Telescope
2.4M望远镜远程观测系统——数据管理子系统
ultra-low-expansion mirror telescope
超低膨胀率镜望远镜
a binocular telescope microscope ]
双筒目]望远镜显微镜]
A binocular or field glass.
双目镜，双筒望远镜
prismatic binoculars
棱镜式双目望远镜.