查询词典 gorges

To reveal patterns of longitudinal distribution, seasonal variation, and ecological succession in cladocerans communities in the Three Gorges Reservoir, ten sites were used to sample cladoceran communities across a longitudinal gradient from April, 2004 to January, 2005. Nine cladoceran species were collected throughout the year.

中文摘要：为了阐明三峡水库初次蓄水后干流库区枝角类的时空分布规律， 2004年4月至2005年1月，在600余公里干流库区设置10个样点，定性和定量采集枝角类标本。

Through classification statistic of the investigation data of landslides in the Three-gorges Reservoir, the author obtained the distribution functions of shear strength parameters of sliding zone, and calculated the correlation of natural strength parameters and saturation strength parameters.

对三峡库区已有勘察资料的滑坡进行分类统计，得到滑带土抗剪强度参数的分布函数，并计算其天然强度和饱和强度的相关关系。

Simulation of the construction of RCC cofferdam in Three Gorges Project is taken as the example by this program, The result are quite good and can be used in the design and the construction of mass concrete structure.

利用本文所研制的有限元程序FEAPTEP对"三峡工程三期RCC围堰施工过程仿真及蓄水安全评价"这一重大项目进行了分析研究，取得了较为满意的效果，为工程设计和施工提供了可靠的依据。

Laser ablation inductively coupled plasma mass spectrometry was used to establish radiometric U-Th-Pb ages and produce the records of rare earth elements of conodont of the Permian Maokou Formation in the Three Gorges area.

利用激光剥蚀电感耦合等离子质谱对三峡地区二叠系茅口组牙形石的U-Th-Pb同位素年龄进行测定。

During the design of Three gorges water conservancy, we have many lessons to learn from the past failures.

在设计三峡水利工程时候，我们要从以前的失败终吸取教训。

Based on Three Gorges Project, the following aspects about the three typical embedding manners are studied:(1) The border condition of cyclic symmetry is applied to the finite element models with contact among cushion layer, penstock and concrete. The effects of elastic modulus, thickness and placement extent of cushion layer on the stress of its around concrete are analyzed. It is suggested that the ratio of thickness to elastic modulus can be used as an important parameter in the design of cushion layer.

因此，本文结合三峡工程建设实践，在收集和总结前人经验的基础上，以大型通用有限元分析软件ANSYS为平台，对不同埋设方式的巨型蜗壳结构进行以下几个方面的研究：(1)引入循环对称边界条件，考虑垫层-钢板-混凝土之间的接触摩擦，建立有限元模型；并对垫层敷设范围、垫层厚度和弹性模量等设计关键参数进行了优化，并把"垫层弹性模量与垫层厚度之比"作为参考指标进行设计。

T...更多he water quality development trend after the Three Gorges Dam built up has become one of the global attentions.

因此，研究三峡水库水质的发展变化趋势、预测未来发展的规律，加强管理，已经成为各方面十分关注的问题。

The water quality development trend after the Three Gorges Dam built up has become one of the global attentions.

三峡水库蓄水以后，三峡库区水质如何变化一直成为国内外广泛关注的问题。

It will take them more than ten years to complete the Three Gorges Dam.

他们要用十多年的时间来完成三峡大坝工程。

The Government has a lot of infrastructure projects, of which the most representative is the Three Gorges Dam.

政府进行了很多基础的工程项目，其中最具代表性的就是三峡大坝。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。