“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	ultrasound scalpel ultrasound sterilization ultrasound surgical operation and focusing treatment devices ultrasound tomography ultrasound, ultrasonics ultrasound, ultrasonic sound ultrasound wave ultraspeed ultraspherical ultraspherical differential equation ultraspherical function ultraspherical polynomial ultrastability ultrastable ultrastable glass ultrastable systems ultrastrength material ultrastrong ultrastrong dual ultrastrong operator topology ultrastrong topology ultrastructural pathology ultrastructure ultra-supercritical power generation technology ultra telephoto lens, super telephoto lens

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