图示杆件剪切面的面积为_________________________。https://bgk-photo.cdn.bcebos.com/b8014a90f603738df9859f42a31bb051f919ec87.jpg
图示杆件剪切面的面积为_________________________。https://bgk-photo.cdn.bcebos.com/b8014a90f603738df9859f42a31bb051f919ec87.jpg
发布时间：2025-03-03 10:38:54
