GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||
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11:54 Nov 20, 2008 |
English to Chinese translations [PRO] Science - Geology Additional field(s): Environment & Ecology, Meteorology | |||||||||||
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| Glossary-building KudoZ This question was created by: This question is closed
Selected response from: Li Rui China Grading comment
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Summary of translations provided | ||||
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5 +3 | 永久冻土 |
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永久冻土 Definition from Wikipedia: 一个地质学的名词,指当冻土层(Tundra)处于水的结冰点以下(即0℃)超过两年的状况。永久冻土地带的泥土不一定有水份,例如在无孔基岩(不透水的岩石)里就不可能有水;但在大多数情况下,水不单存在,而且更超过地表物料的潜在水饱和量。一般的冻土层在气候回暖或受到强压时,冻土内的冰会溶解成为水;但永久冻土的所在之处,即使在天气回暖之时,气温仍然在冻点以下,使冻土内的冰不能再次溶解成为水份,因而使冻土的组成不变。 Example sentence(s):
Explanation: 也可称作永冻土或多年冻土 |
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