The volume of most salts will contract while changing from liquid to solid, which leads to the forming of void in the container.
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.
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。
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