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English Translations » 【公用配套及基建圈】 » 【Utilities – Civil Engineering Version】20181024

【Utilities – Civil Engineering Version】20181024

2018-10-24View Original

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A laser plumb bob mainly consists of components such as (). A: Helium-neon laser tube B: Precision vertical axis C: Level gauge D: Laser power supply E: Receiving screen Answer: ABCDE
Reply #22018-10-24
A: Helium-neon laser tube B: Precision vertical axis C: Level gauge D: Laser power supply E: Reception screen
Reply #32018-10-24
It consists of components such as a helium-neon laser tube, a precision vertical axis, an emission telescope, a level, a base, a laser power supply, and a receiving screen

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Translated at 2026-07-23 11:30:57

Original: https://bbs.hcbbs.com/thread-2115701-1-1.html

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