Third, in order to calculate microscopic sweep efficiency in pore models, we define sweep boundary of displacement fluid, and determine it by velocity method.

第三，为了计算孔隙模型的微观波及效率，本文给出了驱替液波及边界的定义，并采用速度法确定其在流场中的位置。

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The truck can complete the well site flushing operation itself, and has the advantages of big flushing fluid capacity, good water treatment, and high efficiency, handiness and good acclimation.

该洗井车具有能单独完成井场洗井功课的成果，同时还具有洗井强度大、水处理结果好、高效、轻便、适应环境强等特性。

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The hydraulic fluid viscosity, the volumetric efficiency and the hydraulic system working efficiency drops, divulging increases, even causes the mechanical device to be unable the normal work.

液压油黏度、容积效率和液压系统工作效率均下降，泄漏增加，甚至使机械设备无法正常工作。

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And the afterglow of that historic achievement was evident in the admirable tactical nous they executed in the first half as they stifled the Netherlands' search for fluid creativity with regimental efficiency in front of a near-full Moses Mabhida Stadium.

BBC: Netherlands 1-0 Japan