In fact, fluid flow - particularly pulses that mimic the effect of a beating heart - is proving crucial for growing replacement arteries in the laboratory.

事实上，流体的流动——尤其是模仿心脏跳动效果的脉冲——对在实验室培育人造动脉是至关重要的。

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Hemp satin was the fabric of choice as it is a lightweight, elegant and fairly fluid fabric that was quite easily frayed to create the desired effect.

麻缎这种备选纤维由于重量轻，档次高雅，纹路十分流畅而很容易被磨损，这样就能制造出需要的效果。

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It is possible that cleaning the lens regularly could reduce this problem, but it is unclear what effect lens-cleaning fluid would have on its built-in electronics.

定期清洗镜片或许能减少这样的问题产生。不过，镜片清洗液会对内嵌的电子设备造成什么影响还不好说。

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The effect, which occurs thanks to a conducting fluid in which the yarns were dipped, could be put to use in motors much thinner than a human hair.

BBC: Nanotube yarns twist like muscles

Mr Olej, of Bearsden, and Mr Starrett, of Port Glasgow, are said to have then poured lighter fluid onto the carpet and lit it causing a fire to take effect in the house.

BBC: Murder jury shown images of dead pensioner John McCulloch