The gross pattern of dikes can be duplicated theoretically . 岩脉总体型式可以作理论模拟。
2.
Wind - field diagnostic analysis and historical observation data are used to reveal general flow patterns of lower atmosphere over beijing area 用风场诊断方法和实际观测资料对北京地区低层大气的背景流动情况进行分析,获取当地流动时空演变的总体型式或模态。