1) Frost-period ecology
霜期生态
2) defrost cycle
融霜周期
1.
Based on the theory and experiment research of the characteristic of the refrigerated vertical open display cabinets, the method of reasonably select the main structural parameters including air supply velocity,evaporator structure and defrost cycle etc were discussed.
在理论和实验研究立式敞开式制冷陈列柜工作特性的基础上 ,讨论了合理选择陈列柜送风速度、蒸发器结构和融霜周期等结构参数的途
3) defrosting circle
除霜周期
4) frost-free period
无霜期
1.
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。
2.
Through comparison between several kinds of thermal indexes and analysis of China s climate characteristics,frost-free period is considered to be a proper thermal index of climatic zoning for grapevine in China.
在对目前酿酒葡萄区划热量指标进行总结和分析的基础上,通过对几种热量指标的比较和我国气候特点的分析认为,以无霜期作为我国酿酒葡萄区划的热量指标,即以无霜期≥160 d(30年平均值,且在30年中无霜期<150 d的次数不超过3次)作为我国酿酒葡萄栽培的热量最低限(区划北界)是适宜的,比其他热量指标确定的区划界限更有实际应用价值。
5) Frost during flowering period
花期霜冻
6) first frost day
初霜冻期
补充资料：霜期
指一年中初霜后至终霜前的一整段时间。在这一期间内，经常有霜出现。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条