intermediate-massCOCA¹³⁶³³⁴BNC²³⁶²¹³⁺¹ 基本例句 un.中间块；🌏中间质量；中间质块 There are competing theories as to what causes this powerful radiation— one intriguing possibility is an intermediate-mass black hole which is pulling in material from its surroundings. 关于是什么引起了这种强有力的辐射，还有其他的很多理论。有一种是说在这附近有一个巨大的黑洞，以至于吸引周围的很多物体。 cri