“frostless period in China”的概念、定义、翻译、参考文献-科学参考

单词	frostless period in China
释义	frostless period in China Encyclopedia 理学中国的气温释 frostless period in China中国的无霜期一年内终霜日与初霜日之间的持续日数。一年中春季最后一次出现白霜的日期称终霜日，秋季第一次出现霜的日期为初霜日。无霜期长短不含初、终霜日，各年的无霜期差异很大，通常以其多年平均值表示。
随便看	shale oil shale oil extraction shale oil industry shale oil in situ production shale oil processing shale oil production shale recovery shale stability index shale swelling tester shallow acceptor shallow architecture shallow band impurity shallow development well single trip casing drilling technology shallow donor shallow fertilization shallow-focus earthquake shallow foundation shallow geothermal energy shallow geothermal energy survey shallow geothermal heat exchanger shallow impurity shallow lake shallow lake subfacie shallow land burial shallow lens

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