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frost-free period

美英

un.无霜期

frost-free period

frost-free period

英-汉网络释义

frost-free period

无霜期

关于地理方面的英语单词_百度知道 ... 物理风化（作用）（ physical wathering） 无霜期（ frost-free period）峡谷（ gorge） ...

3

September to May the following year as the frost period, frost-free period is short , significant differences between north and south .

九月至次年五月为霜冻期，无霜期短，南北相差悬殊。

4

Change at the annual frost-free period 100-160 days , the distribution of the trend of growing on the grounds east to west .

全年无霜期变化在 100—160 天之间，分布趋势为由东向西逐渐增长。

5

The frost-free period lengthened, and the frost period shortened .

无霜期天数增加，霜期缩短。

6

Variations of Frost-Free Period and Low Temperature in Spring in Minqin Desert

民勤荒漠区无霜期及春季低温变化特征分析

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