polar circle
英 [ˈpəulə ˈsə:kl] 美 [ˈpolɚ ˈsɚkəl]

释义

极圈；

英英释义

polar circle

• n.a line of latitude at the north or south poles

权威例句

Polar Circle
polar circle
'POLAR CIRCLE'
Pines beyond the polar circle: Adaptation to stress conditions
Pines beyond the polar circle: Adaptation to stress conditions
Total nitrogen dioxide at the Artic polar circle since 1990
Total nitrogen dioxide at the Arctic Polar Circle since 1990
Yeast resources in natural habitats at polar circle latitude
Stratospheric O 3 and NO 2 observations at the southern polar circle in summer and fall 1988
Seasonal cycle and winter diapause induction in ants of the genus Myrmica in the Polar Circle region
Haemonchus contortus: parasite problem No. 1 from tropics - Polar Circle. Problems and prospects for control based on epidemiology
Unexpected finding of the "tropical"bacterial pathogen Plesiomonas shigelloides from lake water north of the Polar Circle
A Voyage to the Cape of Good Hope towards the Antarctic Polar Circle round the World and to the Country of the Hottentots and the Ca...