| 1 |
00:00 278 |
| 2 |
00:00 271 |
| 3 |
00:00 312 |
| 4 |
00:00 339 |
| 5 |
00:00 273 |
| 6 |
00:00 283 |
| 7 |
00:00 273 |
| 8 |
00:00 256 |
| 9 |
00:00 252 |
| 10 |
00:00 274 |
| 11 |
00:00 229 |
| 12 |
00:00 230 |
| 13 |
00:00 237 |
| 14 |
00:00 213 |
| 15 |
00:00 305 |
启闭机运行时的电流、电压检测