micrometer disc
... micrometer stage 测微计镜台 microscope micrometer 显微镜测微计 ; 显微镜测微器 micrometer disc 测微计盘 ...
micrometer r disc
... micrometer r ①测微计,测微尺 ②微米 micrometer r disc 测微计盘 micrometer r eyepiece 测微目镜 ...
micrometer dial gauge
clock dial micrometer