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汉语拼音：dòng tǔ

所含水分冻结成冰的土壤或疏松的岩石：～区。～地带。

1. 冻结的土壤。

   宋 张耒 《岁暮歌》：“啾啾寒雀飞不起，飢啄冻土藏枯丛。”

2. 今按冻结的持续时间分为暂时性冻土、季节性冻土和多年冻土。

• The frozen ground will have to be picked up by hand before machine digging can begin.

  这冻土必须挖过后才能用掘土机掘土.

• Perhaps this is caused by the sudden melting of subsurface permafrost.

  可能是地下永久冻土突然融化所造成.

• As the permafrost melts, the land loses its capacity to absorb water.

  由于冻土融化, 陆地会失去吸水性.

• There is a large amount of methane gas under the Siberian tundra.

  西伯利亚的冻土地带之下有大量的甲烷气体.

• This paper introduces the artificial frozen earth's mechanics parameters and property.

  文中进一步介绍了人工冻土的力学参数和特性.

• Frost crack is the main failuve of asphalt pavement in permafrost region.

  冻裂是多年冻土地区沥青路面的主要病害.

• This was a challenge, because the permafrost is barely permanent.

  这是一大挑战, 因为这里的冻土并非永久不变.

• How much methane and dioxide might be released from the rotting permafrost?

  腐烂的冻土层将会向空气中排放多少甲烷和二氧化碳?

• The colder South Pole sits atop the massive , frozen continent of Antarctica.

  更加寒冷的南极位于广阔的南极洲大陆冻土之上.

• That sends the frozen ground - swell under it.

  它使墙底下的冻土膨胀隆起.

• As permafrost gets warmer, it could become wetlands.

  永久冻土变得更加温暖时, 将变成湿地.

• The frozen ground was difficult to dig.

  冻土不好挖.

• They broke the hard frozen earth with picks.

  他们用镐把坚硬的冻土凿开.

• It is believed that 10 million mammoths are buried under the frozen soil of Siberia.

  人们相信,在西伯利亚冻土下埋藏着近千万的猛犸.

• Soil freezing temperature and unfrozen water content are important properties of frozen soilfreezing or frozen soils.

  土壤冻结温度与未冻水含量是冻土的重要物理参数,影响因素多,关系复杂.