1.His father is an Arctic explorer.

1.他父亲是一位探险者。

2.The arctic tundra is at the top of the world around the North Pole.

2.冻原是指周边的区，是世界最高的方。

3.The earth component includes arctic cloudberry seed oil and red cranberry seed oil.

3.泥土成分包括莓果籽油和红色蔓越莓籽油。

4.The intact carcass of the prehistoric animal was prevented from putrefying by the arctic cold.

4.史前时动物的完整尸体，是由于严寒的保护不致腐烂。

5.The conditions were arctic.

5.周围环境冷。

6.The relationship between arctic tropopause height and surface air temperature is discussed by using the aerological sounding and surface data during 1977-1990 in Beijing area.

6.利用京区1977—1990年的高、资料，讨论了对流层顶与温度的关系。

7.The permanent Arctic halocline, one of the particular structures in the upper Arctic ocean, is very important to the maintenance of the sea ice and cold surface layer in the Arctic ocean.

7.摘要长年存在的盐跃层是冰洋上层海洋独有的结构之一，对维持冰洋表层的低温特征和海冰存在起着非常重要的作用。