Hot cracks refer to the liquid condition, whereas cold cracks are generated in the solid condition, generally at ambient temperature.
热开裂指在液态下产生裂缝，而冷开裂是在固态条件下，一般在环境温度下形成的裂纹。
Cold cracks are generated in the solid condition, generally at ambient temperature.
冷开裂是在固态条件下、一般在环境温度下形成。
Purpose is to enable the ambient temperature in a moderate condition.
目的是使环境温度在一个适中的条件下。
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