frost-free period [农] 无霜期
duration of frost-free period [农] 无霜期
length of frost free period 无霜期间
four-months frost-free period 四个月无霜期
Chenghai is located in the subtropical zone, a subtropical monsoon climate, warm and pleasant, very hot short, a long frost-free period, the Four Seasons is not clear.
澄海区地处亚热带,属南亚热带季风气候,温暖宜人,酷热期短,无霜期长,四季不甚分明。
According to the meteorological observation in Minqin Desert Control Experiment Station, variations of frost-free period, low temperature in spring and frozen earth were analyzed.
以甘肃民勤治沙综合试验站数十年气象定点观测资料为基础,统计、分析了民勤荒漠区无霜期、春季低温、冻土层的变化特征。
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。
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