闭开 meaning in Chinese

make and break
make-and-break

Make and break contact
闭开接点
Normally off on
常闭开
Compared with the previous model , the most important advantage of this improvement is that the close - open operator is used in the diffusion process , giving a good trade - off between noise removal and edge preservation
主要的想法是在中值曲率驱动方程模型中结合闭开算子，在较好保护边界的前提下，增强方程的去噪能力，达到去噪和保护边界的一个平衡。