单词:optical metrology
[光] 光学度量学
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RACHEL MARTIN, HOST: Astronomers are building the world's largest digital camera to capture images of the night sky. This thing is two stories tall, a scientific marvel. So of course NPR's science correspondent Joe Palca traveled to California to che
发表于:2019-01-16 / 阅读(32) / 评论(0)
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China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin
发表于:2019-02-14 / 阅读(84) / 评论(0)
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