A drop in oxygen pressure can cause headaches in certain individuals.

氧分压的下降会使一部分人头痛。

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It can basically reflect the additional viscosity pressure drop due to flow path difference and additional inertial pressure drop due to high speed convergent flow.

该模型从本质上反映了因流线差异造成的粘性附加压降损失和高速紊流效应造成的惯性附加压降损失。

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All open Zero pressure drop.

全开状态零压降。

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In addition,the U.S.Air Force conducted its first airdrop of supplies on Monday, north of Port-au-Prince, using an aircraft that flew from the United States and returned there after the drop, easing pressure on the Port-au-Prince airport.

VOA: standard.2010.01.19

The visitors' first try came after a Bradford goal-line drop-out and continued pressure that saw Tommy Lee find Mariano who muscled through two defenders to score.

BBC: Bradford 40-18 Wakefield

Despite Leicester's dominance, they kicked only four penalties, and the Welsh team finally got on the scoreboard just before the break when a sustained period of pressure ended with Williams's drop-goal.

BBC: Leicester 12-6 Ospreys

In Asia, overall losses were more servere--on the order of 1% in many markets--but analysts attributed the drop more to profit-taking after recent sharp gains than to pressure arising from the U.S. elections.

FORBES: Magazine Article