Such ice cores trap gases, bits of dust, and other chemicals that were present in the snow that fell over Greenland for thousands of years and then became compressed into ice.
这些冰芯将气体、尘埃和其他化学物质封存在格陵兰岛数千年来的积雪中，然后被压缩成冰。
A tourist trap par excellence, this drugstore in South Dakota is famous for its roadside billboards that start advertising 'free ice water' several states away but it's a surprisingly worthy stop.
南达科他州药物墙：一个卓越的旅游陷阱，南达科他州的这个药店因路边的广告牌而出名，它开始在几个州宣传免费冰水。但是它的确令人惊讶的值得你停下来。
That produced a greenhouse effect which, in turn, melted seabed structures known as methane clathrates, which trap that gas in ice.
产生了温室效应，反过来融化了海底甲烷包合物结构，将气体锁在冰中。
In fact, the Canadian Arctic Archipelago acts as a "drain trap" for ship-wrecking multiyear ice, Howell says.
郝伟说，事实上，加拿大北极群岛起到了将能够毁坏船只的多年冰引入西北通道的作用。
Plant a Frost trap which causes Ice and Freezing Damage to all nearby enemies when it explodes. A maximum of 4 traps can be placed at one time.
放一个会爆炸的冰霜陷阱对附近敌人造成冰霜伤害。同时最多能放4个陷阱。
Place a frost trap that freezes the first enemy that approaches, preventing all action for up to 10 seconds. Any damage caused will break the ice.
放置1个寒冰陷坑，熬头个靠近的仇敌10秒内冻止一切动作，任何攻击均可能打破冰块。
The presence of clathrates, ice-like lattice structures that can trap gases, could just as easily explain what we see on the moon.
笼形结构——能够捕获气体的象冰一样的晶格结构的存在，可以很容易地解释我们在这颗卫星上看到的现象。
The presence of clathrates, ice-like lattice structures that can trap gases, could just as easily explain what we see on the moon.
笼形结构——能够捕获气体的象冰一样的晶格结构的存在，可以很容易地解释我们在这颗卫星上看到的现象。
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