Generally, flow at high velocity around well bore in gas well is belong to non-Darcian flow which arising adding pressure drop.
通常情况下，气井井轴周围的高速流动为非达西流动，产生附加压降。
The smelting process was strengthened by using high top pressure, high pressure drop, large blowing rate, reduced tuyere section and enhanced blasting velocity.
采取高顶压、高压差、大风量、缩小风口直径、提高风速和鼓风动能等措施进一步强化冶炼；
The sea level stops in a high position for a long time, so both drop of water and current velocity are small.
并且由于海平面高度相对稳定在较高位置，河流纵比降较小，流速也较小。
There are many defects in measuring the velocity of high temperature flue gas with the pressure-drop sensors.
用基于差压原理的传感器来测量高温烟气流速有许多缺点。
There are many defects in measuring the velocity of high temperature flue gas with the pressure-drop sensors.
用基于差压原理的传感器来测量高温烟气流速有许多缺点。
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