内微测微计
inside calipers micrometer
带深度计游标卡尺
vernier calipers with depth gauge
微测标之立体测点
micro-mark stereo point marking
测微计
Micrometer
Mic
dial micrometer
m micrometer
microlite
micro-meter
assurance of economic growth
dial needle
microcaliper
micrometer gauge
minimeter