Analysis on the tectonic evolution and regional dynamics background provides necessary basis in geology for forecast and planning of coal field.
通过对大地构造演化及区域动力学背景分析，为煤田预测和勘查规划提供必要的地质学基础。
The differential equations of coal particle gas diffusion under the third kind boundary condition and its analytical solution have obtained on the basis of theoretical analysis.
基于理论分析建立了第三类边界条件下的煤粒瓦斯扩散方程，并给出了解析解。
On the basis of theory discussion, USES package development and API function development approach, combines coal gas pipe network administrative system make network analysis realize VB procedure.
在理论探讨的基础上，运用组件开发和API函数开发方法，结合煤气管网管理系统作了系统分析和VB程序实现。
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