“permafrost region of northeast China”的概念、定义、翻译、参考文献-科学参考

单词	permafrost region of northeast China
释义	permafrost region of northeast China Encyclopedia 理学中国的冻土释 permafrost region of northeast China东北多年冻土区位于欧亚大陆多年冻土区的南缘地带，面积约39万平方千米，介于北纬46°30′～53°30′，海拔几百米至1000米上下。冻土年均温度（指地温年变化层底部的温度）大多在-1.5～0℃，最低-4.2℃；地温年变化深度12～16米。冻土厚度亦随纬度降低而减小，大多在50米以下，最厚达百米。
随便看	recovery of natural gas liquids with expansion refrigeration process recovery of natural gas liquids with gas wave refrigeration process recovery of natural gas liquids with propane refrigeration process recovery of natural gas liquids with thermal separator refrigeration process recovery of nonferrous scrap metal recovery of soil productivity recovery of uranium from seawater recovery of waste heat recovery package recovery period of national economy Recovery Program of Hebert Hoover recovery ratio of water fee recovery self-efficacy recovery testing recovery time recovery time objective recovery time objective, RTO recreation recreational agriculture recreational belt around cities，ReBAC recreational business district，RBD recreational fishery recreational fishing resource recreational lawn recreational mathematics

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