Based on the theory of unsteady flow of compressible fluid and the seepage theory of formation fluid, the mathematical model of the gas transient flow in the wellbore has been established.
基于可压缩流体不稳定流动理论及地层流体渗流理论，建立了气体钻井过程中井筒瞬态流动的数学模型。
Based on analyzing the micro critical seepage phenomena of gas-liquid two-phase flow in a single fracture, a random and compound mathematical model was constructed to describe this phenomenon.
通过对裂缝中气液二相流体临界渗流现象的分析推理，建立描述这一现象的随机混合渗流数学模型。
Mathematical model of tracing exploration is established after generalizing the law of movement of tracer in seepage flow field of rockfill dam to master the characteristics of flow field.
本文通过对堆石坝渗漏流场中示踪剂运移规律进行概化，建立示踪探测数学模型，达到了认识其流场特征的目的。
Mathematical model of tracing exploration is established after generalizing the law of movement of tracer in seepage flow field of rockfill dam to master the characteristics of flow field.
本文通过对堆石坝渗漏流场中示踪剂运移规律进行概化，建立示踪探测数学模型，达到了认识其流场特征的目的。
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