EXT-70 extruder is a special device used to produce explosive wire for seismic explanation and pigtail for geophone array.
EXT-70挤出机是生产地震炮线、检波器组合软电缆的专用设备。
The research on the problem of earthquake fortification line in high-rise frame-core wall structures;
高层框架-核心筒结构抗震防线问题研究
According to the requirement of deploying seismic lines and practical needs of project production,using GIS components MapX and in combination with database Access,we developed a set of seismic lines management system functioning figure data browsing,condition checking and data leading-in/out,truly improving the properties of legacy lines management system,meeting the need of project production.
根据部署地震测线的要求和项目生产实际需求,将GIS组件MapX与Access数据库结合起来,开发出的一套具有图形数据浏览、条件查询和数据导入导出等功能的测线管理系统,切实改善老测线管理系统的性能,满足项目生产的要求。
To ensure that the seismic line layout in areas with high-steep mountains and low signal-noise ratio is helpful for the seismic execution,launching and receiving,a line assessment and semi-automatic optimization method was defined on the basis of remote sensing information through exploitation,study a.
为使高陡山地及低信噪比地区地震测线部署方案有利于地震实施、激发和接收,通过在复杂地表地震工区的探索、研究和实践,建立了基于遥感信息的测线评价与半自动优选方法。
It is theoretically proved that when a seismic ray trajectory is a straight line on an interface it may be a curve on another interface.
根据Snell定律提出了透射射线的非线性效应的概念,从理论上证明了当地震射线的轨迹在1个界面上为1条直线时在另1个界面上可为1条曲线;并进一步通过射线追踪实验证明:当地下介质为非水平层状介质时,即使对应于地面同一条直线段上的接收点,来自地下同一个界面上的反射点的轨迹仍可为一条曲线。