查询词典 source area

We use quasi-Newton method for a high-speed coarse scan over a large area of the head, and Levenberg-Marquardt method for a fine scan near the source area.

首先从数学物理中关于不定问题的定义来解释脑磁逆问题的不适定性，脑磁文献中没有这方面的详细讨论。

Door source county is Qinghai saves main cole and highland barley to grow an area, be located in Gao Han, 2 600~2 900 M of average height above sea level, with milk cow and flesh ovine breed aquatics is given priority to, belong to farming area stock raising.

概要： 门源县是青海省主要的油菜和青稞种植地区，地处高寒，平均海拔高度2 600~2 900 m，以奶牛和肉羊养殖为主，属农区畜牧业。

Influenced by the exterior source input of the detrital matters, U-series dating using aragonite is not suitable to the study of Lake Sugan sediment and a further study is required.2. The isotopes study of precipitation-groundwater-lake water system in Lake Sugan drainage area indicates that in modern climate system, the precipitation in Lake Sugan drainage area is mainly supplied by the water vapor carried by Westerly.

沉积物文石的铀系测年受到外源碎屑输入的影响，在苏干湖并不适用，需做进一步的研究。2、苏干湖流域降水-地下水-地表径流-湖水同位素系统研究表明，现代气候条件下苏干湖流域大气降水主要来源于西风环流携带的水汽输入。

An RF ion source suitable for low power operation over a range of pressures in air which comprises discharge electrode, a cathode and an anode, the cathode being connected to an rf signal supply through an associated coupling means and the anode adapted to provide a surface area over which a plasma discharge may occur no greater than substantially that of the cathodal area over which the discharge may occur.

在空气压力范围内适合低功率工作的射频离子源，该离子源包含放电电极，一个阴极和一个阳极，该阴极通过相关的连接装置连接到射频信号源，调节该阳极以提供等离子放电可能发生的表面区域，该区域不大于放电可能发生的阴极区域。

In the CO_2 source area, phytoplankton abundance was low and zooplankton mainly belonged to true estuary and estuary marine communities; while in the CO_2 sink area, phytoplankton was high and zooplankton mainly belonged to euryhaline marine communities.

在枯水季节，长江口海域由低盐区大气二氧化碳的强源逐渐过渡到高盐区的弱汇，咸淡水的混合在一定程度上决定了该区域碳源汇的格局；二氧化碳源区，浮游植物的丰度低，浮游动物主要是纯河口类群和河口性海洋类群，而汇区，浮游植物的丰度高，浮游动物主要是广盐性海洋类群。

In source area Haiti area, nature happy dry, colored shape like wheat fringy, has the tall and slender stem to do, on the flower covers the star type fine fur, on the end is blooming the small indigo blue flowers, the narrow long leaf blade assumes the greyish-green, Cheng Zhushi Gao Keda 90cm, usually blossoms in June.

熏衣草 原产地中海地区，性喜干燥，花形如小麦穗状，有着细长的茎干，花上覆盖着星形细毛，末梢上开着小小的紫蓝色花朵，窄长的叶片呈灰绿色，成株时高可达90cm，通常在六月开花。

In order to explore the grain-size distribution characteristics and geo-genetic types of land desertification in Mo Us desert, the research on the grain-size characteristics of sediments since late Pleistocene has been carried out in the desert area and neighboring area such as inside desert, sand covered loess plateau, loess plateau and river valley. The research result shows that sediments of different geologic genetic types are the fundamental material source of sandy desertification in these areas and the distinguishing of different types of the sediments is the theoretical basis of classification of different geogenetic type of sandy desertification. The contribution of different geological roles on the land desertification and its significance to prevent and deal with the land desertification have also discussed.

为了研究毛乌素沙地沉积物的粒度特征与土地沙漠化的地质成因类型，通过系统研究沙地及相邻地区晚更新世以来在沙地内部、覆沙黄土区、黄土高原和河流谷地与湖泊等不同地质构造地貌条件下所形成的沉积物粒度特征，指出不同地质成因类型的沉积物是这些地区土地沙漠化的物质基础，区分不同类型的沉积物也是构成不同地质成因类型土地沙漠化分类的理论基础，探讨了不同地质作用对土地沙漠化的贡献及其对土地沙漠化防治方面的意义。

The southern mountain area of Jinan has special geology and geomorphy, and its ecological environment is very fragile. But as the protection area of drinking water source, it can supply the groundwater to spring crowd of Jinan. Its water environment function is very important.

济南市南部山区地质地貌条件特殊，生态环境脆弱，但却是济南市泉群的地下水补给区和饮用水源保护区，水环境功能重要。

Based on the analysis on the oil sources and migration pathway of this area, the mineralization modes of the oil sand in the area are derived in this paper. Main conclusions are drawn as follows: a. multiphase tectonic activity resulted in multistage hydrocarbon generation of the source rock; b. threestage tectonic activity and threestage mineralization process formed a great deal of unconformity and fault pathway, thus the crude oil could migrate in a long distance; c. the tectonic activity in Yanshan and Himalayan stages uplifted the edge of the basin and the eroded reservoir outcropped to the surface, the light oil escaped and then the oil sand resource formed; d.

通过对该区油源和运移通道的分析研究，得出该区油砂的成矿模式：①多期的构造活动使烃源岩多期生烃；②三期构造活动、三个阶段的成矿过程，形成了大量的不整合面和断层通道，使原油远距离运移；③燕山期和喜马拉雅期构造活动使盆地边缘抬升，经受剥蚀，油层出露地表，轻质油逸散形成了现今的油砂资源。

In my city peripheral 200 kilometers scopes has the nearly ten state-levels key sceneries scenic spot area, is Jiangsu Zhejiang and Shanghai the traveling source of tourists market and the Jianxi Fujian Anhui traveling resources gathers the place the gold point, is the coastal plain wind band of light the gradient corridor which extends to the interior scenery wind band of light, also is eastern part the developed area leads to the mid-west to owe developed local the stopover station; Day by day appears transportation superiority.

我市周边200公里范围内有近十个国家级重点风景名胜区，是苏浙沪旅游客源市场与赣闽皖旅游资源集聚地的黄金结点，是沿海平原风光带向内陆山水风光带延伸的梯度走廊，也是东部发达地区通往中西部欠发达地区的中转站；日益显现的交通优势。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了