“permafrost degradation”的概念、定义、翻译、参考文献-科学参考

单词	permafrost degradation
释义	permafrost degradation Encyclopedia 工学冰冻圈变化释 permafrost degradation冻土变化冻土指温度低于0℃并含有冰的土或岩层。全球不同地区冻土在面积、温度、活动层厚度等方面均有一定差异。
随便看	safety culture consciousness safety culture construction safety culture construction demonstration enterprise safety culture construction method safety culture identification system safety culture manual safety culture mechanism safety culture principles safety culture propaganda safety culture system safety data sheet safety decision making safety decision making method safety decision of engineering project construction safety decision type safety degree education safety degree of gas drainage safety depth safety design safety detonating control System of conventional warhead safety device of pressure machinery safety distance safety distance of explosives safety driving assist technology safety early warning of rock engineering

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。