large asteroid翻译
large asteroid的基本解释
读音: 美: 英:
大型小行星:指直径在几十米到几百公里之间的天体,可能对地球造成威胁。
例句
If a large asteroid hit, it would be very difficult for it slow down before it hit Earths crust.如果一个大型的小行星撞击,在它落地之前很难把它的速度降下来。And if the challenges for a large asteroid seem too daunting researchers could always start with a smaller asteroid perhaps six to 30 feet across.如果说对于大型的行星的挑战不能一蹴而就,研究者常常从小一点的开始,比如直径6到30英尺的小行星。
That’s been observed twice before, when comet Shoemaker-Levy 9 crashed into Jupiter in July 1994, and when a large asteroid smacked the planet last summer.这种黑羽碎片的现象已经观察到了两次了,一次是苏梅克-列维9彗星于1994年7月撞向木星,另一次是去年夏天一个比较大的小行星于撞击了这个行星。
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