hard rays 中文意思是什麼
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One important observable difference between black holes and other compact massive objects is that any infalling matter will eventually collide with the latter, at relativistic speeds, leading to irregular intense flares of x - rays and other hard radiation
黑洞和其它密集質量物體之間的一種重要的觀察差異是任何掉進物質將最終與後者碰撞,以相對的速度,導致x射線和其它的難于輻射的不規則的強烈閃光。
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