单词:equality-of-brightness photometer
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Dr. Gong Yongxiang, head of the Aier ophthalmic expert team, performed a free cataract surgery on a Myanmar patient at the Sitagu Shwe Pyi Hein Clinic in Yangon on May 19th, 2017. [Photo: China Plus/Tu Yun] Some 200 cataract patients in Myanmar will
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in Physics goes to Saul Perlmutter at the Lawrence Berkeley National Lab, Brian Schmidt at the Australian National Lab and Adam Reiss at Johns Hopki
MOSCOW, Jan. 23 (Xinhua) -- Russia stands firm for the international order based on equality, mutual respect and a pragmatic approach to controversial issues, Foreign Minister Sergei Lavrov said Wednesday. Reviewing major diplomatic ties between Russ
O, from what power hast thou this powerful might 啊,你那魔力究竟来自什么源泉, With insufficiency my heart to sway? 竟能左右我的心灵,尽管你有缺陷? To make me give the lie to my true sight, 你教我把眼见为实称作