Topcon

The construction characters and working principle are discussed integratedly in the article according to the American TOPCON sonic averaging system .

以美国拓普康公司研制的非接触式平衡梁为例，系统地分析了摊铺机超声波非接触式平衡梁的工作原理、结构特点。

Methods The accommodative amplitude and relative accommodation were measured using phoroptor ( TOPCON ), and compared using Pearson correlation .

44眼为人工品状体眼。方法采用综合验光仪（TOPCON）测量调节幅度、相对调节，采用Pearson相关分析其相关性。