During transmission line construction, sag observation is an important control item of stringing.
在输电线路施工中，弧垂观测是架线分部工程中重要的控制项目。
Yucheng sag and Liangshuizhen sag are the two main oil source areas and control the distribution of the most prospective areas in the depression.
因主要排油期发生较晚，致使油气近距离运移为主，禹城洼陷和梁水镇洼陷两个主要油源区控制着凹陷中最有远景区的分布。
Based on systematic analysis of fault systems and its evolution in the Beier Sag, Hailaer Basin, the control of fault formation and evolution on hydrocarbon migration and accumulation was researched.
在系统分析海拉尔盆地贝尔凹陷断裂系统及其演化的基础上，研究了断裂演化对油气运聚条件的控制作用。
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