Keeping the instrument height as 1 m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than« Back to Previous Page
45 m |
▲ ▼ |
45 m |
▲ ▼ |
45 m |
▲ ▼ |
45 m |
Please log in to post questions/answers: