Discontinuity - an interruption in the normal physical structure or configuration of a part such as cracks, inclusions, and porosity, which may or may not affect the usefulness of a part.
铸件正常物理结构或组织的中断，比如可能会或不会影响使用的裂纹、夹杂、疏松等等。
Discontinuity - an interruption in the normal physical structure or configuration of a part such as cracks, inclusions, and porosity, which may or may not affect the usefulness of a part.
铸件正常物理结构或组织的中断，比如可能会或不会影响使用的裂纹、夹杂、疏松等等。
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