Among the three soils, the average flow velocity of Wushan soil was the smallest and the breakthrough process was the longest.
对这三种土壤而言，乌栅土的各土层的平均流量最小，穿透时间最长。
During surgery the experimental group, the femoral vein, the average flow velocity and blood flow were all maintained at a stable state.
实验组手术过程中，股静脉、平均血流速度及血流量均维持在较稳定状态。
The average flow velocity can not get from the average flow velocity of every monitoring point in the same time, but by a period of time.
因为平均流速不是由同一时间各测点流速取平均值得出的，而是由一段时间内各点的流速取平均值得到的。
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