There was a drop in pressure in the pulmonary artery.

肺动脉的压力出现下降。

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They discovered a drop in pressure in the fuel cells that supplied electricity.

他们发现供电的燃料电池电压下降。

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They base this on the previously unconsidered drop in pressure that occurs when water passes from gas to liquid state in condensation.

这是根据先前当水因冷凝由气态变为液态时，气压骤降而得出的。

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They discovered a drop in pressure in the fuel cells that supplied electricity.

VOA: special.2009.06.24

Birds, which have more rigid and robust lungs, do not undergo the same trauma from a sudden drop in pressure.

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Two patients with especially advanced ALL experienced what Dr. Brentjens termed a "shake and bake response" significant fever and a drop in blood pressure that resulted in their admission to intensive care.

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If the regulating valves fail or if the cabin structure is breached (by a failure of a door or window for example) then the pressure in the cabin would suddenly drop to match the outside air pressure.

BBC: NEWS | Europe | Dangers of aircraft decompression