vernier

特殊用法angular vernier1.■齿距卡规declination vernier1.■(罗盘仪)游标Delcom vernier1.■带游标电感比较仪direct vernier1.■(地测)顺游标double vernier1.■复游标folded vernier1.■重叠游标linear vernier1.■线性游标optical vernier1.■光学游标retrograde vernier1.■逆游标, 反读游标single vernier1.■单游标time vernier1.■时间游标尺transit vernier1.■经纬仪游标