accounting information system at branch level

coupling mechanism between upper level and low level jet

fiscal system at county level and township level

interaction between upper level and lower level

municipal level and county level

1×3 branch waveguide

10th earthly branch

11th earthly branch

12th earthly branch

13 branch waveguide

1st earthly branch

2nd Earthly Branch

3rd earthly branch

4 branch lines

4th earthly branch

5th earthly branch

6th earthly branch

7th earthly branch

8th earthly branch

9th earthly branch