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1)  broad base azimuth mirror
宽底方位镜
2)  rectangular mirror with thick edge
宽边长方镜
3)  wide azimuth
宽方位角
1.
In recent years,the people has gradually had comprehensive knowledge of superiority of implementing wide azimuth survey but flinched from more expensive acquisition cost because of higher folds and smaller bin size for wide azimuth survey.
近年来,人们对开展宽方位角观测的优点有了比较全面的了解,但对于宽方位角观测一定要有更高的覆盖次数及更小的面元,即更昂贵的采集费用,有些望而却步。
2.
Through literatures investigation and study, the paper expounded the development situation of wide-azimuth exploration abroad and at home,clarified the definition of wide azimuth and gave a part of application cases.
本文通过文献调研,阐述了国内外宽方位角勘探的发展现状,明确了宽方位角的定义、并给出了部分应用实例。
3.
By reviewing the development of international seismic survey in recent years, wide azimuth three - dimensional (full three-dimensional) seismic takes good effects in searching for fracture an.
从近几年国际地震勘探的发展看,宽方位角三维(全三维)地震在寻找裂隙、岩性和隐蔽型油气田方面见到了较好效果,成为寻找隐蔽圈闭的有效勘探方法。
4)  wide azimuth
宽方位
1.
Acquisition design technique with wide azimuth seismic and its application.
宽方位三维地震采集设计技术及应用
2.
To improve the character of azimuth's distribution,the authors advanced a new designing method named wide azimuth 3-D layout with infilling shots in August, 1999.
为了改善面元的方位角分布特性,笔者于 99年 8月提出了一种新型三维观测系统设计法,又称之为成组加密法宽方位三维观测系统设计方法。
3.
Complex geological conditions in Bohai basin needs 3-D wide azimuthalobservation system, which can remove the disadvantages (big contrast between l0n-gitudinal multiplicity and.
渤海湾盆地复杂的地质条件需要采用宽方位三维观测系统,它可克服以往三维观测系统中纵横向覆盖次数差别大、方位角分布不均的弊端,得到较好的地检距和方位角分布。
5)  wide-azimuth
宽方位
1.
3-D seismic exploration acquisition with wide-azimuth;
川西地区宽方位三维地震勘探采集技术研究
6)  wide azimuth angle
宽方位角
1.
The collection of wide azimuth angle provides with more seismic illumination intensity than that of the narrow azimuth angle, and hence has higher 3-D seismic resolution and the ability of reservoir anisotropic identification, which may improve the interpretation and identification of thin sandstone beds and small fractures.
宽方位角采集比窄方位角具有更好的地震照明度。
补充资料:方位角


方位角
azimuth

  fangweiiiao方位角(az imuth)从地面上某点的指北方向线起,顺时针方向至目标方向线之间的水平夹角。用度或密位表示。按指北方向线的不同,分为真方位角、坐标方位角、磁方位角等。军事上主要用于指示目标,现地判定方位,赋予火炮和导弹武器的射击方向,提供飞机、舰船的导航数据。真方位目二 方位角的种类角(A),是以真子午线(真北)为基准方向,顺时针量到某一指定目标方向的水平夹角。由专门仪器用大地天文测量方法测定,也可用陀螺经纬仪直接测定,由0。一360“量度。坐标方位角(a),是以高斯投影平面坐标网中的坐标纵线(坐标北)为基准方向,顺时针量到某一指定目标方向的夹角。可用经纬仪或方向盘测角进行推算,也可以由其他方位角换算,由OD一360“量度。磁方位角(M),是以磁子午线(磁北)为基准方向,顺时针量到某一指定目标方向的夹角。用带磁针(罗盘、罗针)的测角仪器测定,由0o一3600量度。同一点的3个指北方向(真北、坐标北、磁北),一般是不一致的。真北方向与坐标北方向之间的夹角,称为子午线收敛角(门)。真北方向与磁北方向之间的夹角,称为磁偏角(时。3种方位角在平面上的关系为:A~。+门,A=M+己。 (匀萃山)
  
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