The internal thread comes within the broad definition of an internal undercut in that the thread forms a restriction which prevents the straight draw removal of the molding from the core.
因为内螺纹构成约束它阻碍零件从型芯的直接脱模所以内螺纹在内凹孔的广义范围内。
The internal thread comes within the broad definition of an internal undercut in that the thread forms a restriction which prevents the straight draw removal of the molding from the core.
因为内螺纹构成约束它阻碍零件从型芯的直接脱模所以内螺纹在内凹孔的广义范围内。
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