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The techniques of the crooked line seismic reflection engineering geology investigation which include crooked line design,data acquisition, data processing,data explaining,and so on and two examples are introduced in this paper based on the Principle of commondepth cell stacking.

本文以共反射面元水平迭加的原理为基础,全面、系统地研究了山区弯线地震反射工程地质勘探技术,包括,弯线设计、数据采集、数据处理、资料解释等,并介绍了两个应用实列。

Hang Zhou JiaNuoDe Hardware Tools Manufacturing CO.,LTD, Introduces Taiwan spheroidization stove two, and the cold-drawing equipment, the specialized production tool uses hexagon bar iron, Fang Gang, a cutter bar Yuan steel, spheroidize through this equipment cause each kind of fine line steel not to have the decarburization, degree of hardness evenly, The stable performance is good, may produce each kind of steel grade impact extrusion phosphorus to saponify the fine line.

杭州嘉诺德五金工具制造有限公司,引进台湾球化炉二条,及冷拉设备,专业生产工具用的六角钢、方钢、刀杆元钢,通过该设备球化使各种精线钢无脱碳、硬度均匀、稳定性能好,可生产各种钢号冷挤压磷皂化精线。

Using linear elastic finite element model for piles and pile cap, elastic-plastic finite element model for piles-surrounding soil under pile cap, linear elastic infinite element model for soil around pile group, and mounting interface element on the pile-soil interfaces, 3-D elastic-plastic finite element method is used to analyzing the pile-soil-cap interaction.

对桩及承台采用线弹性有限元模型,对承台下桩周土采用弹塑性有限元模型,对群桩以外的土体采用线弹性无限元模型,在桩土接触面上设置接触面单元,利用三维弹塑性有限元对桩%D土%D承台相互作用进行了分析。

Narrow Line Seyfert 1s (NLS1s, including high luminosity quasars with similar properties) are very important extrema of type Ⅰ AGNs. The unusualness of NLS1s is very useful to test the viabilities of AGNs models and thus provide a new way probing into AGN phenomena. The ratio of Fe to α-element (e. g., O, Ne, Mg...), Fe/α, can serve as an excellent indicator for constraining the ages of star-forming systems.

中文题名窄线SeyfertⅠ星系与活动星系核光学FeⅡ发射线副题名外文题名论文作者周宏岩导师周又元王挺贵学科专业天体物理研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数127页关键词活动星系核河外星系馆藏号BSLW /2003 /P15 /7 窄线SeyfertⅠ型星系(Narrow Line Seyfert 1,NLS1,包括具有类似性质的类星体)是具有极端性质非常重要的一类Ⅰ型AGN,对NLS1的深入研究是限制和完善活动星系核理论模型的一条新途径。

The same set of ductile-rheologic shear deformational augen granite samples in the Yunkai uplifted area are measured by whole-rock Sm-Nd, Rb-Sr isotopic dating system method, obtaining respectively 1414±68Ma for Sm-Nd isochron age and 490±36Ma for Rb-Sr isochron age. These ages are respectively interpreted as the time of the granitic rock formation and the time of the tectono-thermal event of ductile-rheologic shear partial melting in Caledonian, indicating that the orogeny not only took place in Caledonian, but also the more important tectono-magmatic orogeny in the late Mesoproterozic Era and can be compared with the time of global Grenville orogeny.

对云开核部韧性-流变剪切变形眼球状花岗岩石样品进行了全岩Sm-Nd、Rb-Sr同位素年龄测定,获得1414±68Ma的Sm-Nd等时线和490±36Ma的Rb-Sr等时线年龄,它们分别代表这套花岗岩的形成时代和加里东期韧性-流变剪切部分熔融构造热事件发生时间,表明云开地区不仅在加里东期发生造山运动,而且在中元古晚期发生了更为重要的构造—岩浆造山运动,其时代与全球性的格林威尔造山运动时间可以对比。

Fluorites formed in uranium mineralization period in the Zoujiashan and Shazhou uranium deposits have ε〓 values from -6.7 to -8.3 and I〓 values from 0.7145 to 0.7204, similar to their host rocks (porphyroblastic lava and sub-granodioritic porphyry) which have ε〓 values from -6.2 to -9.4 and I〓 values from 0.7121~0.7192. On diagram of ε〓- t, the fluorites and host rocks plot in similar area within the evolution field of the basement rocks at Xiangshan. The lead isotopic compositions of pyrites formed in uranium mineralization period plot as a line on diagram of 〓Pb/〓Pb vs.〓Pb/〓Pb. The host rocks plot at the lower value end. Calculation based on the slope of the line and the mineralzation age yields age of 144Ma for the geological body which provided uranium for the mineralization.

邹家山和沙洲铀矿床成矿期萤石的ε〓值(-6.7~-8.3)和I〓值(0.7145~0.7204)与赋矿围岩(碎斑熔岩及次花岗闪长斑岩)的ε〓值(-6.2~-9.4)和I〓值(0.7121~0.7192)相似,在ε〓-t图上,成矿期萤石数据点的投影范围与赋矿围岩的基本吻合,且均落在相山元古宙基底演化域范围内;成矿期黄铁矿的铅同位素组成在〓Pb/〓Pb-〓Pb/〓Pb关系图上呈线性分布,而火山岩的铅同位素组成位于此相关线的低值一端;利用异常铅线的斜率及成矿年龄计算出富铀地质体的形成年龄为144Ma,这与赋矿围岩的成岩年龄(135~140Ma)非常接近。

A geometric correction model of tri2CCD line sensor imaging is established by use of outer orientation elements synchronously recorded by IMU and inner orientation elements cali2 brated in the lab. At last geometric distortions and geometric corrections are simulated on the computer.

利用由惯性导航系统同步记录的CCD 线阵传感器的外方位元素和在实验室标定的CCD 像元的内方位元素建立3 条CCD 线阵传感器成像的几何校正模型,通过仿真实现了遥感成像的几何畸变及几何校正。

Based on moving least squares surface, the differential properties of each sample point on PSO are first evaluated. In terms of covariance analysis, the elliptical splat of sample point is then determined on its tangent plane. Finally, the splats are rendered from far to near by using elliptical weighted average filtering. According to the differential properties, moreover, the suggestive contours of PSG are attained so that non-photorealistic rendering of PSG is realized.

首先根据构造的移动最小二乘曲面计算采样点的表面几何属性,然后根据协方差分析确定点元在其切平面上的椭圆表示,最后采用椭圆加权平均滤波从远到近单遍绘制各点元,此外,根据表面几何属性确定点模型的轮廓线,实现了点模型的非真实感绘制。

Phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map, which shows the result is correct.

4对于低噪声情况下或滤波后的干涉条纹图,在基于边缘检测的相位解缠过程中,利用Snake模型可以高效准确的实现边缘点的连接,所连接的边缘线与干涉条纹很好的吻合,可将连线的精度控制在三个像元。

Flying wing center column locking knob Flying wing design of center column locking knob,which can adjust the height of center column more laborsaving and more convenient.

捷宝MX-1227+KK-2T云台赠价值58元电子快门线 730.0元捷宝镁铝合金优惠套装猎豹急锁MX1227+KK-2T云台:中轴锁紧钮的飞翼形设计,可更省力更方便的调节中轴高度。

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In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国,慢性酒精中毒,肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题,你可以随时联系我。

Very pretty, but the airport looks more fascinating The other party wisecracked.

很漂亮,不过停机坪更迷人。那人俏皮地答道。