internal micrometer meaning in English

内径千分表
内径千分尺

Internal micrometers with three - point contact
三爪内径千分尺
Internal micrometers with two - point contact
两点内径千分尺
Measuring instruments . external and internal micrometers . special design
测量仪表.内外千分尺.专门设计
Length measuring instruments . internal micrometers with 3 spindles . specifications . test methods
长度测量仪表.带3根转轴的内径千分尺.规范.试验方法
Verification of geometrical parameters - micrometers - part 4 : internal micrometers ; concepts , requirements , testing
几何参数的验证.千分尺.第4部分:内径千分尺.概念要