这种酸使金属起反应，并放出气体。
这种金属氢化物的粉末，在受热后会分解，释放出气体来。
When heated, these metal hydride powders decompose, liberating the gas.
我放手的话,气会从这个方向走掉,这气球往此方向,放出气体。
So, if I do it like this, and I let it go the air will come out in this direction and so then it means the balloon is pushing on the air in this direction.
许多火山的熔岩静静地在冒泡，有时喷入空中，释放出气体，一般是完全无害的。
In many volcanoes the lava bubbles quietly, tossing lava into the air at times, giving off gases, and, in general, being fairly harmless.
地面植被加热到一定程度会释放出气体，但其中有些气体是不能燃烧，因为它们周围没有足够的氧。
The vegetation on the ground heats up enough to release gas, but some of the gas can't combust, because it doesn't have enough oxygen around it.
生活在人体大肠中的细菌分解食物后，释放出气体，产生肠胀气。发酵过程是的食物比先前更容易吸收。
Flatulence is gas released by bacteria that live in the large intestine when they break down food. Fermenting makes food more digestible earlier on.
当植物的叶子或根茎被切开时，植物就发出痛苦的信号(或者也许仅仅是不高兴)：在整个表面释放出气体乙烯。
When a leaf or a stem is sliced, the plant signals pain (or perhaps merely dismay) by releasing the gas ethylene over its entire surface.
当植物的叶子或根茎被切开时，植物就发出痛苦的信号(或者也许仅仅是不高兴)：在整个表面释放出气体乙烯。
When a leaf or a stem is sliced, the plant signals pain (or perhaps merely dismay) by releasing the gas ethylene over its entire surface.
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