adj. fragmentary
... sterility n. 不毛, 不育, 中性, 无结果 fragmentary adj. 由碎片组成的, 断断续续的 alienate v. 疏远 ...
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2009年，一艘旧的俄罗斯飞船撞上了一颗通讯卫星，形成了由数百片碎片组成的云团，危及其他硬件设备。
In 2009 an old Russian craft slammed into a communications satellite, creating a cloud of hundreds of pieces of debris and putting other hardware at risk.
它们基本上是由太阳系起源时遗留下来的碎片组成的。
They're basically made up of debris left over from the origin of the solar system.
碎片来自125英里长的小游星，由微弱的碳和大量钙、铁组成。
The debris, which came from an asteroid that was once 125 miles long, showed little carbon and high levels of calcium and iron.
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