They show a surface broken into polygonal slabs by repeated freezing and thawing of the sort that happens above permafrost.
它显示了其在永久冰冻区之上的表面由于多次冰冻和融化已经成为多边形的冰板。
Methane in the atmosphere traps more heat near the earth’s surface, further raising temperatures, leading to more thawing, more decomposition, more CH4, etc. etc. etc.
大气中的甲烷吸附更多接近地球表面的热量,进一步升高温度,导致更多的融化,再分解,产生更多甲烷,等等。 如此往复循环。
The wind erosion hazard is often intensified by the poor vegetation cover and loosen surface soil due to the freezing and thawing over winter.
春季风大风多,降雨量少,气候侵蚀力高,地表植被覆盖率低,土壤表层由于冻融作用变的松散,是一年最易风蚀的季节。
The primary inducing factors of sand-sliding are surface water, ground water, stream erosion, dynamic load action, wind load action, freezing-and-thawing action, plant and man-made factors.
溜砂的主要诱发因素是地表水、地下水、河流冲刷、动荷载作用、风荷载作用、冻融作用、植物及人为因素。
The primary inducing factors of sand-sliding are surface water, ground water, stream erosion, dynamic load action, wind load action, freezing-and-thawing action, plant and man-made factors.
溜砂的主要诱发因素是地表水、地下水、河流冲刷、动荷载作用、风荷载作用、冻融作用、植物及人为因素。
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