查询词典 permafrost

The article discusses the law of ground temperature returning to freeze and the variation instance of upper bound on the basis of the cast-in-place pile s data which tested in place in permafrost regions.

结合对冻土区钻孔扩底桩的现场试验数据，论述了灌注桩地温的回冻规律及上限变化情况，通过现场静载试验，比较了扩底桩与直孔桩的抗拔能力，分析了桩周土体冻结强度、地面变化的基本状态。

In permafrost areas in the Soviet Union or canada or Alaska, ice has been used effectively for walling and roofing

在苏联、加拿大或阿拉斯加的永久冻土地区，冰一直很有效地用来做墙和屋顶。

This Hall leads to the Permafrost zone line.

这导致了大厅冻土区路线。

The heat preservation effect of the awning can be seen after one awning. After a cycle of cold and warm seasons, an awninged embankment temperature is 3~5℃ lower than an ordinary embankment, and the permafrost table ascends 1.0~1.7m, with an average of 1.1m, under the berm, the road shoulder and the road center.

遮阳板措施的保温效果在应用只有1a的时间里面就表现出来，在第1个冷暖季节过后，在遮阳板保护下的路基土体温度就较普通路基低，在路基左路肩部位低出3~5℃；在路基的左右护道、路肩孔和中心孔冻土上限抬升在1.0~1.7m，平均抬升1.1m。

Simulation results verify that insulated board can effectively protect the heat from transferring into the foundations, and the frozen table is always around the lower bottom of the boards; the position of the frozen table with insulated boards is higher than that of without; the embank- ment formation has a better effect on the center of embankment, the shoulder and toe of the roads than others; after consideration of the construction effect, the best lay out of the insulated boards is higher than the position of natural ground surface to 0.3-0.6 m; this formation of the embankments is the right effective constructer to be used in the permafrost on the Qinghai-Tibet railway.

通过数值模拟可知：保温板能够有效地阻止热量由路基面向下传入地基中，使0℃等温线始终在保温板底层；复合路基多年冻土上限的位置要比无保温板时的高；该结构形式对路基中心、路肩和坡脚下的多年冻土上限抬升的综合效果更好；考虑施工条件后，复合路基在保温板铺设距离天然地面之上0.3~0.6 m对于路基稳定性最为有利；该路基结构形式为青藏铁路多年冻土区路基的理想结构形式，有利于克服全球变暖的影响。

Roughly the size of India, it's capped by a thick layer of permafrost and swathed in dense taiga forest. In 1891, Marsden emerged from this wilderness, riding into Vilyuysk accompanied by 15 Sakha Cossacks.

粗广的印度覆盖稀薄的冻土和宽带状浓密的原针叶林。1981年，马斯登迅速的从这个荒地由15哥萨克人陪同骑马到维柳伊斯克。

The results showed that treatment of due north direction and tectorial membrane could increase soil temperature obviously, lower permafrost layer thickness and decrease sprouting.

结果表明：正北向+覆膜处理能明显提高土壤温度，降低冻土层厚度，减少苹果幼树越冬抽条现象的发生。

Life is becoming more expensive: snowmobiles must take longer routes, buildings are weakened by melting permafrost and, unthinkably, the local council in Kuujjuaq felt obliged to buy ten air-conditioners last summer after temperatures reached 31°C.

而且不可想象的是，去年夏季的温度达到31℃之后，魁北克的库巨尔可村子里竟不得不要买10台空调来降温。

The gravels, plants and water contain gold, which can contribute to the regeneration of gold placers in permafrost region.

矿区砂砾石、植物、水中含金，可以对砂金矿的&再生&作出贡献。

A recent study suggests, however, that permafrost ices below the surface of Mars may have altered the effects of impact on it.

但是，近来的研究表明，火星土层表面下的永久冻结冰可能改变了这种冲击效应。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。