| 1 |
00:00 205 |
| 2 |
00:00 170 |
| 3 |
00:00 233 |
| 4 |
00:00 255 |
| 5 |
00:00 345 |
| 6 |
00:00 181 |
| 7 |
00:00 152 |
| 8 |
00:00 167 |
| 9 |
00:00 167 |
| 10 |
00:00 144 |
| 11 |
00:00 160 |
| 12 |
00:00 146 |
| 13 |
00:00 150 |
| 14 |
00:00 180 |
| 15 |
00:00 164 |
| 16 |
00:00 152 |
| 17 |
00:00 147 |
| 18 |
00:00 168 |
| 19 |
00:00 185 |
| 20 |
00:00 128 |
| 21 |
00:00 173 |
| 22 |
00:00 150 |
| 23 |
00:00 157 |
| 24 |
00:00 164 |
| 25 |
00:00 139 |
| 26 |
00:00 166 |
| 27 |
00:00 153 |
| 28 |
00:00 188 |
水利工程测量及监测主要仪器设备介绍（上）