A lot of steam escaped from the vent at the front of the machine.

大量蒸汽从机器前端的排气孔冒了出来。

《柯林斯英汉双解大词典》

In the steam-engine analogy, verbal aggression may vent some of the aggressive steam.

在蒸汽机的类比中，言语攻击可能会释放出一些具有攻击性的蒸汽。

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Radioactive steam will still bubble up to the top of the water in the containment vessel, but will be harder to vent as the systems for doing so in an orderly manner are now underwater.

在安全壳内，放射性蒸汽将会持续形成气泡并上升到水面顶部，但是放压工作却更困难了，因为系统在正常方式下的放压操作现在却要在水下进行。

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And today there is a head of steam to vent.

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We pass a white wall of mountains off to the left and, on the right, an active volcano with steam curling out of the vent.

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In this configuration, the HTP is passed over a catalyst pack to decompose it into steam and oxygen, but instead of igniting a fuel grain, this superhot gas is allowed simply to vent through the chamber nozzle.

BBC: Science & Environment