查询词典 historical geology

The local factors such as topography, vegetations and soil moisture contents, have great influences on the distribution, ground temperatures, and ground ice contents of permafrost. About 50 km of wetlands have been identified along the China-Russia crude oil pipeline route. In these segments, the surficial deposits consist of peat and humic layers on the top of thick ground-ice, or ice-rich permafrost. The frozen ground engineering geology conditions in wetlands generally are the worst for building and operating the pipeline. The hazardous periglacial processes, such as the widespreadpresence of pingos, icings and frost mounds due to the extensive occurrence of the frost-susceptible soils and ample supplies of surface and ground waters in winter pose significant threats on pipeline operation.

地形地貌单元、植被分布、地表水分条件的变化等局部因素对多年冻土的分布和地下冰的赋存产生重要的影响，管道沿线大约分布有50 km左右的沼泽湿地，其表层为腐殖质土及泥炭层，泥炭层下面分布着含土冰层或地下冰，是管道沿线最差的冻土工程地质地段；由于中俄原油管道沿线水系发育多，冻胀丘、冰椎和冰幔等不良冻土现象广泛分布。

Based on these facts, it defmitude the New-hope company"s strategy orientation: keeping absolute control to Cable company, keeping opposite control to Software company, quiting Cenment company; Cable company indraughts strategy investor, realizing product,market and capital"s fast expansion, finally becoming a leader in cable field; Software company transfers its wroking emphases, and becoming influential local software house dedicating to petroleum geology, Cenment company is sold, and takes back money for relevant uses; through capital operation, by three to five years effort, New-hope company become a industrial-type holding company which dominating in electrical wire and cable yield and simultaneously set foot in information industry.

在此基础上给出了新希望公司的战略定位，即：对各业务单位进行战略调整，保持对电缆公司的绝对控股，对软件公司实行相对控股，退出水泥公司；电缆公司引入战略投资者，实现产品、市场和资本的快速扩张，成为国内同行业领先者之一；软件公司转移经营重点，并通过&创业版&进行社会融资，成为国内有影响力的石油地质软件开发商；退出在水泥公司的股权，转而投向上述相关产业；以资本运营为手段，经过3～5年的快速发展，使公司成为以电线电缆的生产经营为主，同时涉足信息产业的产业型纯粹控股的企业集团。

This research stress on both of water-saving irrigation technique and engineering reform plan in the irrigation, investigates current situation and main existing problem including geography, geology, social economic condition and so on....

本文研究主要从灌区节水灌溉技术和工程改造方案两方面入手，调查研究灌区现状及存在的主要问题、灌区的自然地理、地质、社会经济等基本情况，通过灌区的水资源供需平衡分析，论证了灌区实施节水改造的必要性和可行性。

This paper mainly discusses the theory knowledge of the building ,smoothing ,filling and labeling of isolines and their algorithmic realization, as well as an application of isoline in the explain of geology information system, at last it gives some suggested argument about isoline studys next work.

文章主要讨论了等值线的生成、光滑、填充，标注等内容的理论知识和算法实现，以及等值线在地质资料解释系统中的应用，最后对等值线研究的后续工作进行了建设性的讨论。

The trip visits Spurn Point, Holderness, Scarborough, Sewerby and Filey Brigg. Topics discussed include: erosion; the effect of geology on urban development; paleocliffs; Jurassic reefs; chalk cliffs and jet rock.

网站还提供了一些主题讨论，主题涉及到海水侵蚀、地质变化对城市发展的影响、侏罗纪时期暗礁介绍、白垩纪时期悬崖介绍及黑玉岩介绍等内容。

Study on the geologic forecast s way tunnel of in karsts -geology;2. Study of the Characteristic of Bearing Capability of Pile Foundation in Karsts Area;3. Research conclusions:The karsts encountered in the construction can be divided into four types according to the engineering geological charac.

研究目的：宜万线是目前已建和在建工程中岩溶最为发育的铁路线，全线共有隧道159座，约占线路总长度的59%，其中多数隧道穿越碳酸盐岩地层，岩溶、岩溶水极其发育，这给隧道工程的安全施工以及工程建成后的运营安全造成十分重要的影响。

Paleomagnetic data is a key data for quantitative investigating block motion in tectonic geology.

古地磁数据是构造地质学定量探讨地块运动的重要数据。

Especially for some long-distance, large-diameter, complex-geology projects, the construction risks are so large.

特别是对于一些长距离、大管径、复杂地质的穿越工程，其施工风险让人望而生畏。

In the area with complex seismic geology condition,the solutions of petroleum geologic problems are limites by the unique use of seismic survey If some non-seismic gcophysica survey was applicd objcetivcly,the situation would bc improved.

在地震地质条件复杂地区，用单一的地震方法解决油气地质方面的问题有一定的局限性。若有针对性地使用某些非地震方法后，情况就不一样了。

From the angle of natural geography and geology science, the paper regards mountain tourist resources of Yunnnan as the main object, emphasizes the verticality and otherness of mountain landscape, and marks off massive and full structural mountain tourism types: temperate alpine ice and snow adventure tourism in the northwest of Yunnan, altiplano semitropical moderate mountain forest leisure tourism in the middle of Yunnan, semitropical low mountain Karst sight-seeing and science tourism in the southeast of Yunnan, north tropic low mountain rain forest wildlife tourism in the southwest of Yunnan, semitropical moderate mountain volcano physiognomy hotspring and science tourism in the west of Yunnan, temperate alpine meadow migratory bird wildness tourism in the northeast of Yunnan.

云南少数民族众多，各少数民族文化在不同的地域表现出不同的特点，从而丰富了云南山地旅游资源的文化内涵，也增加了云南山地旅游地的吸引力。

I was up all night because I was in pain, she said.

我整夜，因为我在疼痛，她说。

A crow caws /craoks.

乌鸦叫。 51-论文网