Approach on break crossover point diastrophism direction of break coal intersecting line drawing in complex structure area 复杂构造区断煤交线绘制法中断裂交点错动方向的探讨
2.
With thousands years of diastrophism and human society ' s development , the natural environment of the upper - part of the yellow river has conceived its distinguished zoology and resource structure , therefore forms its special geographic upper - part - yellow river region ' s economy and society development model 黄河上游的自然环境随着千百年的地壳运动以及人类繁衍，孕育出了独特的生态及资源结构，从而也形成了具有区域特色的黄河上游典型地区经济和社会发展模式。
3.
Because ancient lakes on the south coastal plain of laizhou bay lie in transitional area between sea and land , they receive the influence of sea level changes , river diversion , diastrophism and the activities of human beings , so the course of formation and change of ancient lakes are very complicated 该区的古湖泊，处于海陆交互的复杂环境中，受到海平面变动和气候变化的深刻影响，同时也受到河流变迁、地质构造变动、人类活动的影响，其形成与演变过程十分复杂。
