水可以从液体变成固体。
固体在一定温度下转变成液体。
不需要蒸汽时，液体保持在熔点以上，需要蒸汽时液体才能变成固体，释放其储存的能量。
The liquid is maintained above its melting point until steam is required, at which point the liquid is allowed to turn back into a solid, releasing its stored energy.
当某些东西升华时，会直接从固体变成气体-绕过了液体状态。
When something "sublimes" it turns directly into a gas from a solid? Bypassing the liquid state.
然而，温度不是可以使聚合物从液体转变成固体并转变回来的唯一原因。
Temperature, however, is not the only thing that can cause this polymer to shift from liquid to solid and back.
水是液体，但我们能把它变成固体。我们还能把它变化为气体。
Water is a liquid, but we can change it into a solid. We can change it into a gas, too.
问题是，在失重状态下液体变成水珠浮于表面，而固体会漂浮在空中。
The problem is that in weightlessness, fluids can blob up and stick to surfaces, while solids float in the air.
如果我们将温度升到足够高，固体就会变成液体，液体就会变成气体。
Solids can usually be turned into liquids and liquids into gases if we raise their temperature high enough.
水是液体，但它遇冷凝结就成了固体，煮沸则变成气体。
Water is liquid, but it becomes solid when it freezes and becomes gas when it is boiled.
这种新液体物质如果和另外一种化学制品混合在一起，就会很快变成固体。
The new substance is a liquid that quickly changes to a solid when mixed with another chemical.
也许你研究的不是一个反应，但你得到了一种新的化合物，你看着它从液体变成了固体或气体。
Maybe you're not looking at a reaction, but you've got some new compound, and you're looking at it go from liquid to solid or to gas.
第二点是离子固体，在高温下会变成离子液体。
Point number two is that ionic solids at high temperatures make ionic liquids.
PTMEG为白色醋状固体，当温度超过室温时会变成透明液体。
PTMEG is the white waxy solid, and it will change into the transparent liquid when the temperature exceeds the room temperature.
如果加热到足够高的温度，固体会变成液体，而液体又会变成气体。
Solid can be turned into liquid and liquid can be turned into gas if it is heated enough.
例如，当水先加热然后冷却，会从液体变成蒸汽(气体)最终变成冰(固体)。
For example, when water is heated and cooled, it changes from liquid to steam (gas) then eventually to ice (solid).
大多数人都把水说成是一种无色液体，他们都知道，水在极冷的情况下会变成一种叫做冰的固体；而把它加热，就会变成一种叫做水蒸汽的气体。
They would know that in very cold conditions it becomes a solid called ice, and that when heated on a fire it becomes a vapour called steam.
每当物体溶化时，就由固体转变成液体。
固体受热会变成液体，最终会变成气体。
Heating some solids will changes them to liquids and finally to gases.
固体会变成液体，液体能变成气体。
由于温度的改变使固体或液体挥发而变成蒸汽的过程。
The mechanical process in which a liquid is changed into a vapor.
由于温度的改变使固体或液体挥发而变成蒸汽的过程。
The mechanical process in which a liquid is changed into a vapor.
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