diffusion source meaning in English

扩散源

According to amount and distribution of gas diffusion sources in strata section , this paper put forward a method dividing the gas diffusion systems in strata section
根据地层剖面中天然气扩散源个数及分布，提出了天然气在地层剖面中的扩散系统划分方法。
Based on calculating gas diffusion loss amount from each gas diffusion system , this paper calculated total gas diffusion loss amount in the condition of many diffusion sources by the method of adding up
在每个扩散系统天然气扩散损失量计算的基础上，利用累加方法求取多扩散源条件下天然气扩散损失量。