如果进行冷冻的话，水会由液态变为固态。
反式脂肪是液态油经过所谓氢化的化学处理后变为固态，且保质期延长。
Trans fats are liquid oils that are put through a chemical process called hydrogenation to make them more solid and extend shelf life.
大多数盐类相变材料由液态转变为固态时体积会收缩，在其容器内形成空穴。
The volume of most salts will contract while changing from liquid to solid, which leads to the forming of void in the container.
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