These muscles move food, fluids and gas through your digestive tract.

这些肌肉通过消化道移动食物、液体和气体。

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A year ago, wrangling over the price of gas sold by Russia to Ukraine briefly diminished the flow of gas through Ukraine to Europe.

一年前，围绕俄罗斯销往乌克兰的天然气价格之争使得途经乌克兰输送至欧洲的天然气量锐减。

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Blowers move helium gas through the reactor and over the pebbles, where nuclear fission releases large amounts of energy, heating up the helium.

鼓风机将氦气吹过反应堆，经过核裂变释放出大量能量的小球，加热了氦。

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Then,the car automatically switches to a gas-powered engine, acting as a generator that can power through 483 more kilometers.

VOA: standard.2010.07.30

You've got to put more pressure on one side than the other if you want to push that gas through the throttle, right? So this is where the time scale issue comes into play.

如果你想让更多的气体通过节流阀,应该使一边的压强,大于另一边，是吗？所以这就是,时间尺度发挥作用的地方。

麻省理工公开课 - 热力学与动力学课程节选

And here, in an isothermal expansion, The bath is putting back the energy that the gas is expanding or using to expand, and so the energy is flowing back into the gas through the environment in the isothermal expansion.

而在等温膨胀中，恒温环境将气体膨胀对外做功,而损失的能量又返还回来，在等温膨胀中,能量从环境,流向系统。

麻省理工公开课 - 热力学与动力学课程节选

The oldest enrichment technology, developed in the U.S. during World War II, diffuses the gas through a membrane.

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