perpetual snow

The line on a mountain above which there is perpetual snow and ice .

在大山上终年积雪的最低线。

Study on the Relation Between the Perpetual Snow of Qinghai-Xizang Plateau in Winter and the precipitation in Flood Season in Henan

青藏高原冬季积雪与河南汛期降水关系

The perpetual snow of the arctic .

北极终年不化的积雪。

My eagerness to get out into the world of wind , gloom , and perpetual snow , kept lifting me out of my seat .

我渴望冲到外面这个阴暗的、刮着风、永远在下雪的世界，这种渴望总是让我跃跃欲试。

Therefore , on the one hand , climate warming , the increase of precipitation and perpetual snow in winter and spring was a direct reason that resulted in the increase of snow disaster during the period of 1980s and 1990s .

气候变暖和冬、春季降水增多以及冬、春季平均积雪量的跨季节异常或持续维持是导致青海南部地区20世纪80～90年代雪灾增多的最直接原因之一。

Using wavelet analysis , time coefficients of the first and second spatial patterns of EOF analysis are analyzed , and it is found that the 3 ~ 4-year fluctuation period is the largest component in the temporal variation of Eurasian winter perpetual snow .

利用小波分析发现，冬季欧亚积雪具有显著的3～4a周期。