earth-crossing asteroid
earth-crossing asteroid
[天文学英汉词典]
earth-crossing asteroid越地小行星
近地小行星之一种,运行时可以进入地球轨道之内。
是什么意思,earth-crossing asteroid的解释,earth-crossing asteroid的翻译
earth-crossing asteroid
[天文学英汉词典]
earth-crossing asteroid是什么意思,earth-crossing asteroid的解释,earth-crossing asteroid的翻译