春季解冻

Secondly, ephemeral gully erosion in the spring is a little serverer than that in the summer, and soil loss in the spring is 56% of annual value of ephemeral gully ersoion which is 1.8 times of soil loss tolerance in the region.

在主要影响因素上，春季浅沟受冻融、融雪影响显著，在表层土壤解冻、地表裸露和季节性冻土层存在的条件下，融雪及降雨容易造成强烈的浅沟侵蚀；夏季浅沟由暴雨造成。

From left: blocks of icy debris, warmed by the sun, tumble down cliffs of the northern ice cap; swirling dust devils leave tracks on defrosting dune surfaces in the south; as polar ice recedes, the surface erodes in scalloped ridges; during spring in the north, sand dunes emerge from the blanket of frost; starburst patterns are created as ice warms into gas and expands, creating channels spreading out radially; when the gas breaks through the ice, it creates plumes and material is carried downwind.

从左侧起依次是：冰碎块，由于被太阳加热，从北部冰帽的悬崖上滚落；漩涡状尘暴在南部解冻的沙丘表面留下的轨迹；消退过程中，极冰在地面侵蚀出圆齿状脊；在北部的春季，沙丘钻出&霜毯&；星暴图案是在冰融化成气体并不断扩散时形成的，在此过程中形成的沟槽呈放射状向外伸展；冰从固态变成气态时产生的气羽流顺风飘散。

As the spring thaws came, Nansen and Johansen ventured out of their hovel. They wound south through the archipelago by ski and kayak. When a walrus upended Nansen's kayak, they put in at Northbrook Island to dry out. There they began to prepare for a dangerous journey across the open water to Spitsbergen, where they nursed an overly sanguine hope of being rescued by a Norwegian whaling or sealing vessel.

随着春季解冻的开始，南森和约翰森冒险离开了他们的小屋，他们滑雪以及乘坐皮艇向南穿越了群岛；当海象弄翻了他们的皮艇后，他们登上了诺斯布鲁克岛把皮艇晾干，就在那里，他们开始准备一趟穿越斯瓦尔巴特群岛开阔水域的危险旅程，他们对那个水域抱有一份过分乐观的希望，期待能被一艘挪威的捕鲸船或者捕海豹船救起。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。