spirit leveling meaning in English

水准测高
直接水平

Spirit levels on the gyro may be used to determine whether the instrument has settled with a list .
陀螺上的气泡水准仪可用以确定仪表的放置是否倾斜。
Measuring instruments . precision spirit levels
测量仪表.精密气泡水准仪
Specification for spirit levels for use in precision engineering
精密工程用酒精水准仪规范
Specification for spirit level vials
管形酒精水平仪规范
Light metal spirit level
光金属水平仪

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