查询词典 delta

Using series of vector magnetograms and proper motions, we have analyzed a delta spot in NOAA 9077. This delta spot formed and disintegrated in a very special way. Its current helicity evolution has a close relationship to the magnetic configuration. We find the conclusion, for the first time, that the sign reversal of the helicity can lead to the disintegration of the compact delta structure.

为了解NOAA 9077在7月14日的三维磁场位形，我们使用无力场局部外推程序模拟它的耀斑后环，探讨了理论与实际观测的差异和可能的原因；利用源表面方法，使用MDI高精度磁场数据进行全球势场外推，探讨2000年7月14日大耀斑事件的外部触发机制。

The Small Pearl River Delta covers 4.17 square km and accounts for 23% of Guangdong's territory. It has a 23 million population, which is 31% of the total population of Guangdong. The Small Pearl River Delta has an output of over 1000 billion RMB, which is 80% of Guangdong's output. The Small Pearl River Delta accounts for 9% of China's GDP.

一、小珠三角面积为4.17平方公里，约占广东全省的23%；户籍人口2，300多万人，约占广东全省的31%；创造的生产总值超过1万亿元，约占广东全省的80%，虽然小三角的GDP，广东占的比重很大，但是只占全中国的9%左右。

In general, fan delta is well developed at the steep slope of faulted basin. Through the correlation of fan delta to standard deltaic parasequence model, a well-developed fan-delta succession could fall into two parasequences.

扇三角洲相在断陷湖盆的陡坡一侧发育，通过与标准三角洲副层序模式对比，一个完整的扇三角洲序列可以划分出两个副层序。

For the entire subaqueous delta, accurate calculations for the critical value will depend upon a sound understanding of the sediment retention of the deltaic system. Moreover, it would be appropriate to consider two critical discharges, one for the maintenance of the delta volume, and the other for the maintenance of the surface area of the delta on land.

对于水下三角洲整体而言，应根据沉积物滞留指数来更准确地估算临界输沙率，而且需要区分2个&临界输沙率&，一个是保持三角洲体积的临界值，另一个是保持三角洲陆上部分面积的临界值。

The delta depositional system generally has three topography slope breakpoints, namely the breakpoint between topset and foreset, the breakpoint between delta foreslope and prodelta and the breakpoint between delta depositional system and normal lacustrine depositional system, of them the topography grade of the foreslope i...

三角洲沉积体系一般存在三个地形坡度转折点，即顶积层与前积层之间的转折点、三角洲前缘斜坡与前三角洲沉积之间的转折点、三角洲沉积体系与正常湖泊沉积作用之间的转折点，其中前缘斜坡的地形坡度最大。

The delta depositional system generally has three topography slope breakpoints, namely the breakpoint between topset and foreset, the breakpoint between delta foreslope and prodelta and the breakpoint between delta depositional system and normal lacustrine depositional system, of them the topography grade of the foreslope is the biggest.

三角洲沉积体系一般存在三个地形坡度转折点，即顶积层与前积层之间的转折点、三角洲前缘斜坡与前三角洲沉积之间的转折点、三角洲沉积体系与正常湖泊沉积作用之间的转折点，其中前缘斜坡的地形坡度最大。

Based on the existing data of the Yangtze delta area, a preparatory simulative experiment have been done by the model on the sea-land change course in Yangtze delta area since l0000aBP, and a good simulative effect are obvious from the hypsometric paleotopographic map and 3D color shaded-relief map which exported from the model. That provides a visual scene to analyze and discuss the Yangtze delta evolution, coastline shifting, even the relationship between the ancient civilizations migration and environments.

利用海面—地面系统的模拟模型，对长江三角洲一万年以来的海面—地面变化过程进行了重构和反演，获得了一套该地区的古地貌和海陆关系演变图，它包括等高线、晕渲图、三维图等三种不同表现形式的地形图，为分析讨论长江三角洲地区地貌发育、岸线变迁乃至古代文明的迁徙和兴衰与环境的关系提供了很直观的场景。

In the basis of the facies markers and facies analysis of principle, there are mainly river、delta and lake depositional sysytems in Upper Triassic of Nanniwan field,in which all kinds of difference sedimentary subfacies and sedimentary microfacies are distinguished, such as meandering river、delta plain、delta front、submerged distributary river course、frontal sheet sand and so on.

利用收集到的各种相标志和相分析原则，对研究区的沉积相进行了比较细致的研究，将南泥湾探区上三叠统分为河流、三角洲、湖泊三种沉积体系，并在各沉积体系中细划出曲流河、三角洲平原、三角洲前缘、浅湖等沉积亚相和水下分流河道、河口坝、前缘席状砂等沉积微相。

In Chang 3 Period, the study area mainly developed the sedimentary system of the meandering river delta, which can be divided into the delta plain subfacies and the delta frontal subfacies.

研究表明镇北-演武地区长3油层组沉积物源主要来自于盆地西南缘秦岭造山带和东祁连逆冲褶皱带，物源方向由西南到北东。

There are many academic fruits of the development of the City Clusters on Yangtze River Delta. It is few productions in studying the development of Nanjing's satellite cities as the system of "zonary cities". In 2004, the cities' governments of the City Clusters on Yangtze River Delta had extended the boundary of developing stratagems to extensive Yangtze River Delta.

对长江三角洲城市群发展研究的学术成果很多，但把南京市卫星城市发展以&带城&为体系来研究则没有见到。2004 年，长江三角洲城市群的城市政府已经把发展战略的边界延伸到&泛长江三角洲&。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。