ruby maser造句
造句与例句手机版
- The RF front ends of the radio receivers at the dishes use ruby masers, consisting of a bar of synthetic ruby cooled by liquid helium to 4.5 K to minimize the noise introduced by the electronics.
- In 1956 Maiman started work with the Atomic Physics Department of the Hughes Aircraft Company ( later Hughes Research Laboratories or HRL Laboratories ) in California where he led the ruby maser redesign project for the U . S . Army Signal Corps, reducing it from a 2.5-ton cryogenic device to 4 pounds while improving its performance.
- It's difficult to see ruby maser in a sentence. 用ruby maser造句挺难的
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