When the model is updated the shaft will be 200 mm long, the hub will relocate to the end of the shaft to which it was assembled, and the engineering drawings and mass properties will reflect all changes automatically.
当模型更新的时候轴变成200mm长，毂会重新定位到它所装配到的那个尾端，工程图纸和质量属性会自动反映所有的变化。