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。

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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；

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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。

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Each Mortons The Steakhouse private dining boardroom is equipped with a Velocity HD Digital Suite, which includes a nine-foot drop-down high-definition screen, HD projection system, and 7.2 cinema surround sound.

FORBES: Creating A Virtual Dining Experience

Sabathia (5-4) matched his season high with 10 strikeouts following two months of a puzzling drop in velocity, and New York got two key bats back Friday night in a 4-1 win over the Boston Red Sox that stopped a season-high, five-game losing streak.

WSJ: Yanks beat Boston 4-1 as Teixeira, Youkilis return