他们通过将一个装有GPS定位装置的项圈佩戴给北极熊后，研究员们就可以精确地捕捉到它在两个月内外出捕猎过程中的具体行为。 科学家们能够根据北极熊脖子上的项圈以及植入到它皮肤内的温度检测装置发送回来的数据来判断它是在水中还是再陆地上边。
By fitting a GPS collar to a female bear, researchers were able to accurately plot its movements for two months as it sought out hunting grounds.
它们是巨大的机械装置，带起了巨量的水气和能量，并从热带地区开始输送水气和能量，有时最北可至北极圈。
They are giant machines, picking up huge amounts of moisture and energy transporting it from the tropics sometimes as far north as the Arctic circle.
环北极圈的秘密核电站，连接着巨型浸入式加热器，仍然没有被人发现；而基于太空用于融化全球冰川的激光装置其保密工作也同样无懈可击。
The ring of secret nuclear power stations around the Arctic circle, attached to giant immersion heaters, remains undetected, as do the space-based lasers dissolving the world's glaciers.
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