large arealɑ:dʒˈɛəriə短语¹⁷⁶³³ 基本例句 大面积 Scanning the entire sky in gamma-rays, photons with over50 million times the energy of visible light, the Fermi mission's Large Area Telescope LAT explores the high-energy universe. 通过在伽马射线波段伽马射线光子是可见光光子能量的5千亿备巡天，费米计划的大面积巡天望远镜 LAT探索了高能宇宙。 yeeyan