An ice penetrating radar is deployed from a string of four kayaks to survey a section of the Petermann glacier in Greenland.
一部冰透雷达安装在连成一串的四艘橡皮船上，用来考察格陵兰岛彼得曼冰川的一个截面。
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The new probe was built using improved electronics and batteries, and an extra radar altimeter, a device that will fire microwaves at the arctic and Antarctic ice to reveal its thickness.