《声学检测》课程的线上教学突破了师生的时空限制，在特殊背景下的远程培训中具有重要应用价值。由于线上课程教学过程脱离直接接触，教学环境的稳定性、教学环节的连续性和实践教学的可行性等均存在一定问题。构建了由多个网络平台组成的多维线上教学平台，形成了由教学、考核、持续改进等3大模块组成的线上课程闭环教学体系，并建设虚拟仿真试验项目，实现了超声检测实验课的远程教学，基本解决了《声学检测》课程线上教学的主要问题，取得了良好的教学效果。

The online teaching of the "Acoustic Testing" course which breaks the temporal and spatial limitations of teachers and students possesses important application value in remote training under special backgrounds. However, due to the lack of direct contact between teachers and students in the online course, there are certain problems in the stability of the teaching environment, the continuity of teaching links and the feasibility of practical teaching. A multi-dimensional online teaching platform, a closed-loop teaching system consisting of teaching, assessment, and continuous improvement, and a virtual simulation experiment project are constructed to accomplish the online teaching of ultrasonic testing experiment course. Thus, the main problems of online teaching of "Acoustic Testing" course have been solved to a great extent, and the online course has achieved good teaching results.