讲好振动与波的两个知识点西安建筑科技大学附中李民权１．在“机械振动和机械波”一章中，振动图像和波的图像能够明显地反映各自的特点和规律．但由Ｊ‘振动图像和波的图像很相似，所以有些学生混淆不清，形成错误概念．因此．将两个图像分列如Ｆ．对比说明图像的表示方... Two points of knowledge about vibration and wave Xi’an University of Architecture and Technology, middle school, Li Minquan 1. In the chapter “Mechanical vibration and mechanical waves”, images of vibration images and waves can clearly reflect their respective characteristics and laws. However, the image of the vibration image and wave of J’ is very similar, so some students are confused and form the wrong concept. therefore. Divide the two images as F. Contrast the presentation of the image...