The main products are bio - microscope and astronomical telescope for a wild range of applications in the areas of teaching , scientific education and laboratory ? ?公司生产的生物显微镜和天文望远镜，广泛用于教学实验、科研科普。其塑料生物显微镜系列产品，更是受到国内外广大少年儿童的喜爱。
Using star testing astronomical telescopes as a guide , your telescope will perform to the best of it ' s abilities and perhaps it will show images better than you would have believed possible 使用光轴矫正已经成为使用天文望远镜时必备的一本指南，这样你就能了解你的望远镜是否充分发挥出它的性能。
Some philosopher secludes himself from society , standing apart from fields and workshops and even using not the astronomical telescope to observe the celestial bodies 哲学家有些不食人间烟火，他远离田野车间，甚至也不拿天文望远镜观察观察天体，而只是坐在静谧的书斋里读书、思考，思考那究竟至极、虚无缥缈的本体问题。
Whenever we talk about astronomical telescope in space , we usually think of technical marvels such as the hubble space telescope or the chandra x - ray observatory . a common thread of these facilities is that they were built and developed by the western world 每当我们谈及太空中的天文望远镜，脑海里常会联想到先进的哈勃太空望远镜或钱德拉x射线天文台，这些设施的共通之处在于它们均为西方国家所研制。
As a sensitive instrument , it is very significant in astronomical telescope , laser communication , tracking and sighting system , picture stability optical system and autoadaptation optical system , etc . in recent years , this device is developing continuously at home and abroad 在天文望远镜、激光通讯、图象稳定系统、自适应系统、跟踪瞄准和激光发射光学系统中广为应用。近些年国内外都在不断地研制和发展这种装置。
Point diffraction interferometer - a physical idea , is invented by smartt and strong in 1972 , advanced by smartt and steel , and used to test astronomical telescope , it has simple structure and has not special demand to source . recently . with the development of fiber ' s manufacture and coupling technology . the simple modern fiber ' s center is smaller than before , this make it possible to progress fiber point diffraction interferometer ( pdi ) , in addition to test convergent wavefront , it can test the reflective concave . the excellence of pdi is that it does not need standard mirror . in intereference testing , the standard mirror is the main reason which limit the improvement of precision , pdi can avoid difficulty to provide the wide future for high precision testing . pdi , which produce the standard sphere wavefront , is an instrument which realize the phase shifting with piezoelectric transducer ( pzt ) , and collect the interferogram with ccd , in this paper , a adjusting methord is described , then data processing is obtained 点衍射干涉仪这一物理思想，早在1972年smartt和strong就已发明，由smartt和steel做了进一步发展，并成功的用于检测天文望远镜，它结构简单，对光源没有特殊要求，近年来，由于光纤制造工艺以及耦合技术的发展，单模光纤纤芯不断缩小，为光纤点衍射干涉仪得以发展提供了前提条件，该干涉仪由激光照明，除了检测会聚波前外，还可以用来检测反射凹球面，进而应用到单个面形的检测；另外，光纤点衍射干涉仪最大的优点是不需要标准镜，在干涉检测中，标准镜是检测精度受限的很大原因，光纤点衍射干涉仪能绕开这一难度，为进行高精度的光学检测提供了广阔的前景。
Powered by its own solar panels , the orbiting module remained in orbit for almost 6 months . it contains experiments to study the space environment at the orbiting altitude and , for the very first time , an orbiting astronomical telescope to study high energy radiation from objects ranging from our sun to distant cosmic explosions from far away universe 太空船的返回舱在环绕地球108次后，在北京时间1月16日19时22分返回地球，而轨道舱则由太阳能电池板供应电力，在轨道上继续运行将近6个月，当中并进行了太空环境研究的实验。
