英语词汇“late heavy bombardment”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	late heavy bombardment
释义	late heavy bombardment Astronomy noun An event suggested as having occurred during the early history of the solar system, when an exceptionally large number of asteroids may have collided with the terrestrial planets as they were being formed. It is dated to about 4 billion years ago, a time late in the accretion period of the solar system (though not in the history of the solar system as a whole).. Origin 1970s.
随便看	radio silence radio-silent radiosity radio sky radiosondage radiosonde radio sounder radio sounding radio spectrum radio star radio station radiostereoassay radiostereometric radiosterilization radiosterilized radiostol radiostrontium radio sun radiosurgery radiosurgical radio-tag radio-tagged radio-tagging radio talk radio talk show

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late heavy bombardment