self-reading level rod的意思|示意

自读水准尺 ... 自动坐标展点仪 automatic coordinate plotter 自读水准尺 self-reading level rod 自检校 self-calibration ...

自读式水准尺 ... 支架式水准尺 rack leveling staff 自读式水准尺 self-reading level rod; self-reading rod; speaking rod 尺垫 foot pin; turning plate ...