The further study of coal micro-structural features has great significance for gas masstransfermechanism and efficient development of coalbed methane.
深入研究煤层气储层微观结构，对认清煤层气传质机理和高效开发具有重要意义。
2
From the view ofmasstransfermechanism, the process of chloride transmission in the concrete is considered to be diffusive.
从物质的传质机理角度分析认为，氯离子在混凝土中的传质过程为扩散过程。
3
Based on turbulent diffusion theory and the mechanismof liquid-gas interfacial masstransfer, a conceptual model of turbulent re-aeration process is proposed.