游标读数显微镜vernier reading microscope
镀铬四用游标卡尺chromium-plated four-purpose vernier calipers
【化】 游标卡尺vernier caliper
【物理】游标卡尺vernier scale
镀铬游标万能角度尺universal chrome-plated vernier angle protractor
游标齿厚规vernier gear tooth caliper
游标分划vernier division【机】
齿距规卡尺gear tooth vernier calipers