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glacial相关的网络例句

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与 glacial 相关的网络例句 [注:此内容来源于网络,仅供参考]

The only current ice sheets are in Antarctica and Greenland ; during the last glacial period at Last Glacial Maximum the Laurentide ice sheet covered much of Canada and North America, the Weichselian ice sheet covered northern Europe and the Patagonian Ice Sheet covered southern South America.

格陵兰冰原将全岛覆盖,仅在狭窄的边缘有少量岩石露出。因为动、植物贫乏,故有人将格陵兰的冰原称为&冷荒漠&。南极洲冰原不但将全陆地覆盖,而且有些地方扩大至海上。冰原的厚度有些地方可达数千米。

The distribution of glacial-erosion traces on the roche moutonnee has fair regularity, that is to say the long-straight striations were often formed on the top of stoss side and the crescentic scars, crescentic wedges, chatter marks and shorted striations on the end of stoss side and striation of many groups on the flanks, which can show the condition of glacial division-flow.

迎冰面的顶部为长度大且平直的擦痕,尾部为新月型裂纹,新月型凿口,颤痕和较短的擦痕;侧部常有多组擦痕,它可指示冰川分流的情况。

Five chalcones were synthesized via the aldol condensation reaction of acetophenone or parasubstituted acetophenones with 1-phenyl-3-methyl-5-phenoxyl-pyrazol-4-aldehyde, which reacted with two kinds of hydrazine in glacial acetic acid under refluxing to give a series of bipyrazoline derivatives. In this synthetic course, glacial acetic acid is not only a solvent, but also a catalyzer.

以1-苯基-3-甲基-5-苯氧基-吡唑-4-甲醛为原料,与苯乙酮发生羟醛缩合,生成相应的查尔酮,再在冰醋酸中与不同的肼反应,高产率的合成出10种新的5位含1-苯基-3-甲基-5-苯氧基-吡唑基的吡唑啉类衍生物。

The invention relates to a fabric nanometer following cleaning agent for obtaining TiO2/ZnO composite hydrosol, and relative production and cleaning method, wherein it uses butyl titanate and zinc acetate as predecessor, uses glacial acetic acid as catalyst and peptizer, uses water as solvent, uses absolute ethyl alcohol as the solvent of butyl titanate, and uses ethanolamine as deposit agent and supplies OH-, to be hydrolysed and polycondensated to form TiO2/ZnO composite hydrosol. And its components and mass percents are: butyl titanate at 1-15%; zinc diethyl at 1-12%; absolute ethyl alcohol at 1-20%; glacial acetic acid at 5-15%; and aminoethyl alcohol at 0.1-5%, and the left is water. The invention has lower cost and simple process.

本发明涉及一种可以得到TiO 2 /ZnO复合水溶胶的纺织品纳米后整理试剂及其制备工艺及对织物的整理方法,以钛酸丁酯和乙酸锌为前驱物,冰乙酸为催化剂和胶溶剂,水为溶剂,无水乙醇为钛酸丁酯的溶剂,乙醇胺为沉淀剂并提供OH -,经过水解、缩聚反应形成的TiO 2 /ZnO纳米溶胶整理剂,其组分和重量百分比含量如下:钛酸丁酯占1~15%;二水乙酸锌占1~12%;无水乙醇占1%~20%;冰乙酸占5%~15%;乙醇胺占0.1%~5%;水余量,具有耐洗性、无毒、无刺激、成本低廉、制作工艺简单可靠的优点,可实现对对织物的抗紫外、抗菌、抗静电功能整理。

The down core changes of Florisphaera profunda percentage content implied that the thermocline was shallower in glacial periods and deeper in interglacial periods, which might be the direct controlling factors of WPWP productivity changes. It is speculated that the glacial-interglacial fluctuation of the depth of thermocline was induced by the super-ENSO variation.

钙质超微化石下透光带属种Florisphaeva profunda百分含量指示的温跃层深度变化表明冰期温跃层浅、间冰期温跃层加深,这说明类ENSO式变化导致的冰期-间冰期温跃层深度波动可能是MIS7期以来暖池核心区古生产力在冰期高而在间冰期显著降低的直接控制因素。

Geological evidence for ice ages comes in various forms, including rock scouring and scratching, glacial moraines , drumlins , valley cutting, and the deposition of till or tillites and glacial erratics .

冰河地质证据来多种形式,包括岩石冲刷和刮、冰川地貌、drumlins,河谷切割、沉积、冰川erratics起至或新元。

More : glacier, glacial river, glacier stream, ice stream, glacial stream

结冰的河流。2。即冰川。福斯特先生和他的向导进入了冰河地区。

This photo shows the end of the Muztag Glacier. Moraines are on the right of the glacier, with a small glacial lake beyond it. Submerged glacial gravels can be seen clearly.

该照片反映的是木孜塔格冰川的末端,冰川右侧为冰碛物,前下方为小型的冰川湖,冰川沉砾清晰可见。

A kettle is a steep-sided, usually basin- or bowl-shaped hole or depression without surface drainage in glacial-drift deposits, often containing a lake or swamp, and believed to have formed by the melting of a large, detached block of stagnant ice (left behind by a retreating glacier) that had been wholly or partly buried in the glacial drift.

锅穴是指边缘陡峭的盆形或碗状孔洞或凹陷,在冰碛沉积物表面没有水系,通常包围着湖泊或沼泽。通常认为是冰川退缩过程中停滞于冰川沉积物中的巨大冰块融化而形成的,一般10-15米深,直径达30-150米。在加拿大平原地区有很多第四纪冰川退缩所形成的锅穴湖泊就用 kettle lake 表示。

This thesis has systematically dealt with the glacial, lake and climatic fluctuations in the areas mentioned above throughout the late stadial of the Last Glaciation, based on synthetical records of glacial development at the high mountains, lacustrine stratigraphy and lake evolution in both the high plateau basins and the lower altitude interior ones, periglacial phenomena and palaeosols as well as microfossils in deposits.

本文则根据大量野外实地考察与室内分析资料,从高原高山区的冰川发育与演化,高原和盆地区的湖相沉积地层、湖泊演变历史和地层中冰缘现象、古土壤的发育状况以及微体古生物等方面的综合记录分析,对青藏高原北部与天山地区以及内陆干旱盆地在末次冰期晚阶段中的冰川、湖泊与气候环境演变状况作了较为系统的探讨。

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