The vapour cone effect is caused by pressure differences around the aircraft. A sudden drop in pressure associated with high speed allows water vapour, which is normally invisible, to condense as fog.

蒸汽锥效应是由于战斗机周围的压力差所导致的，高速飞行时压力的陡然降低会使不可见的水蒸气凝结成雾气。

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This is important because a high pressure drop would mean that more energy is required to drive the vapour up the distillation column.

这一点很重要，因为如果压力下降太大，就意味着需要更多能量来推动蒸气上升。

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High water saturated vapour pressure leads to the more possible occurrence of cavitation phenomena in water hydraulic pump, and so as in sliding shoes hydraulic supporting without exception.

水的高饱和蒸汽压力使得水压泵中极易发生气蚀现象，滑靴静压支承也不例外。

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When water velocity is high, the pressure within the liquid drops to below the vapour pressure of water, allowing tiny air bubbles to expand.

BBC: Shrimp, bubble and pop

During the accumulation season, sublimation is reduced because of a low gradient of vapour pressure and the energy supplied by radiation is directly consumed by melting, explaining why discharge is high.

UNESCO: Dublin Core