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- Title
![](0.png)
- Basic Definitions
![](1.png)
- Vertical Line
![](2.png)
- Horizontal Line
![](3.png)
- Gravity
![](4.png)
- Level Line
![](5.png)
- Plane
![](6.png)
- Horizontal Surface
![](7.png)
- Level Surface
![](8.png)
- Leveling
![](9.png)
- Question
![](10.png)
- Tools
![](11.png)
- Sea Level
![](12.png)
- Point A
![](13.png)
- Placement
![](14.png)
- R1
![](15.png)
- R2
![](16.png)
- R3
![](17.png)
- Elevation
![](18.png)
- Good Practices
![](19.png)
- Level Rod
![](20.png)
- Inaccurate Elevation
![](21.png)
- Level Instrument
![](22.png)
- Line of Sight
![](23.png)
- Parallel
![](24.png)
- R2 Difference
![](25.png)
- Correction
![](26.png)
- Error
![](27.png)
- Method
![](28.png)
- Stadia
![](29.png)
- Steel Tape
![](30.png)
- Air Refraction
![](31.png)
- Angle
![](32.png)
- Cancel
![](33.png)
- End
![](34.png)
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