方杆 | 地面 |
---|---|
0.01 rod² | 0.001 ground |
0.1 rod² | 0.006 ground |
1 rod² | 0.063 ground |
2 rod² | 0.125 ground |
3 rod² | 0.188 ground |
5 rod² | 0.313 ground |
10 rod² | 0.625 ground |
20 rod² | 1.25 ground |
50 rod² | 3.125 ground |
100 rod² | 6.25 ground |
250 rod² | 15.625 ground |
500 rod² | 31.25 ground |
750 rod² | 46.875 ground |
1000 rod² | 62.5 ground |