固态收缩所属现代词，指的是将熔化后的金属液浇入铸型中，待凝固、冷却后获得具有一定形状和性能铸件的成形方法。
大多数物质遇冷收缩，所以他们的密度在固态时高于液态。
Most substance contract when they freeze so that the densityof a substance’s solid is higher than the density of its liquid.
大多数物质遇冷收缩，所以他们的密度在固态时高于液态。
Most substance contractwhen they freeze so that the density of a substance’s solid is higherthan the density of its liquid.
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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