The thesis discusses two aspects needing following in 3D seismic prospecting system including seismic geological conditions and field acquisition cost,analyzes and compares common six coal field prospecting systems,comprehensively discusses the analysis results,and finally explains optimal design concept and methods.%对三维地震勘探设计中观测系统必须遵循两方面的要求，即：地震地质条件和野外采集成本进行了论述，并对目前煤田上常用的六种观测系统进行了分析对比，综合论证分析结果，诠释了优化设计的思路与方法。
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