The Crab Nebula is the result of a supernova explosion that went off in the year 1054, and during my next lecture I will talk a lot more about that.
蟹状星云是，超行星在1054年，大爆炸后的产物，下节课中，我会详细讲它。
Perhaps the most famous pulsar lies within the Crab Nebula, the remnant of a supernova explosion that was observed in 1054.
最有名的波霎，或许要算是蟹状星云里头的那颗了，这片星云是1054年观测到的超新星爆炸的残骸。
Perhaps the most famous pulsar lies within the Crab Nebula, the remnant of a supernova explosion that was observed in 1054.
最有名的波霎，或许要算是蟹状星云里头的那颗了，这片星云是1054年观测到的超新星爆炸的残骸。
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