Air is a fluid but not a liquid, while water is both a fluid and a liquid.

空气是流体不是液体，水是流体也是液体。

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Based on the flow mechanism and performance of gas liquid two phase plug flow in oil gas gathering line, a slug unit are divided into both gas slug region with liquid film and liquid slug region.

针对油气集输管线中气液两相团状流的流动机理和特点，将每一段塞单元划分为带液层的气塞区和液塞区两个区域。

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The gas-agitation can greatly improve the liquid-liquid contact and mass transfer both in packed and spray columns.

对填料塔和喷洒塔，气体搅动都可以显著提高液—液两相的接触与传质性能。

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Aluminum and magnesium are both made by ionic liquid electrolysis, just as I showed you last day.

铝和镁都是,由离子液体电解而成，就像我昨天讲的。

麻省理工公开课 - 固态化学导论课程节选

Are there any regions on or within Mercury that might have both liquid water and organic compounds?

FORBES: NASA Has Discovered Water Ice On Mercury

This architecture also enables NASA to leverage existing capabilities and lower development costs by using liquid hydrogen and liquid oxygen for both the core and upper stages.

ENGADGET: NASA's Space Launch System to rocket into deep space, unravel the universe's mysteries (video)

No problem here if you both have more liquid assets than you will ever need to live on.

FORBES: Death, Taxes and Dice Rolling