precision spectrograph造句

例句与造句

1. He is co-director of a high-precision spectrograph ESPRESSO for detecting earth-like planets with the 8 m VLT telescopes in Chile, and the AOLI project for high spatial resolution imaging on the 4.2 m William Herschel Telescope, at the Roque de los Muchachos Observatory in La Palma, Canary Islands.
2. It's difficult to find precision spectrograph in a sentence. 用precision spectrograph造句挺难的