1.
a black mucky soil with a frozen subsoil that is characteristic of arctic and subarctic regions.
黑色的腐殖土，有结冻的底土，是北极区和亚北极区的特征。
2.
the regions north of the Arctic Circle centered on the North Pole.
北极圈以北的以北极为中心的区域。
3.
The Arctic is a polar region. It surrounds the North Pole.
北极地区是个极地的区域，它把北极围在中间。
4.
Arcto-Tertiary flora
北极第三纪植物区系
5.
the Arctic, desert, tropical, etc regions
北极、 沙漠、 热带等地区
6.
arctic: a region between the North Pole and the northern timberlines of North america and Eurasia.
北极地区: 在北极与北美洲和欧亚大陆北部林木线之间区域。
7.
A region between the North Pole and the northern timberlines of North America and Eurasia.
北极地区在北极与北美洲和欧亚大陆北部林木线之间区域
8.
small short-billed auk abundant in arctic regions.
短嘴小海雀，北极地区极多。
9.
(3) between Holarctic zone and Paleotropical zone, but is preferablybelongs to Holarctic zone.
3)位于泛北极植物区和古热带植物区之交，应属于泛北极植物区。
10.
The forth area is the part near the North Pole.
第四个油区是靠近北极那部分区域。
11.
large genus of herbs of north temperate and arctic regions.
北部温带地区及北极地区的一个草本植物大属。
12.
Either of the regions contiguous to the extremities of the earth's rotational axis, the North Pole or the South Pole.
南极，北极与地球的自转轴的两端相连的地区中的任一地区，即北极或南极
13.
Why is oil usually found in deserts and arctic areas?
为什麽石油总是出现在沙漠与北极极区？
14.
Pluto has bright icy areas at its north pole and south pole.
冥王星的北极和南极各有一个明亮的冰区。
15.
Comparative Study of Polar Ionospheric F Layer in Both Hemispheres;
极区电离层F层特性的南北极对比研究
16.
wolf of arctic North America having white fur and a black-tipped tail.
北美洲北极地区的狼，白色皮毛，黑色尾尖。
17.
Prostate cancer is most common in northwestern Europe and North America.
前列腺癌在欧洲西北部以及北美地区极为普遍。
18.
of or relating to latitudes just south of the Arctic Circle.
属于或关于紧邻北极圈以南的地区。