比尔和他的团队使用一种被称为“活动镜”的光学仪器，这是一种在天文望远镜的种类中用来发现新出现的恒星和遥远星系的仪器。
Bille and his team work with an optical instrument called an active mirror—a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies.
托马斯·爱迪生的西洋镜设备，活动电影放映机，于1894年出现在公众面前。
Thomas Edison's peepshow device, the Kinetoscope, was introduced to the public in 1894.
多亏了一打的太空望远镜，太阳活动能够被细致地观测记录下来。
The sun is under scrutiny as never before thanks to an Armada of space telescopes.
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