Astronomers say it is the most distant quasar, a massive black hole surrounded by luminous gas, that they have ever seen as well as the brightest object to be sighted in the early universe.
天文学家们称，这是他们所观察到的最遥远的类星体，是一个被发光气体环绕的巨型黑洞，也是早期宇宙中最为明亮的天体。
Exchange 220v LED lamp, have high luminous efficiency, long, green and was already widely used gas-masks advantages, lighting and residential areas, schools, hospitals, public lighting.
交流220v LED防爆灯，有发光效率高、奉命长、绿色环保等优点，已广泛用危险区照明及住宅小区、学校、医院、公共场所照明。
Light source with high luminous efficiency, long-life gas discharge lamp.
光源采用高光效、长寿命气体放电灯光源。
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