How to draw cad herringbone spelling

1. First, use the co command to copy the section of the superstructure.

2. Then mark the structural dimension line with DAL.

3. Use the o command to draw a transverse reinforcement.

4. Reuse the array to draw a point bar chart.

5. Then use the commands of l and o to mark the rebar.

6. Supplementary paving instructions, using T. ..