 |
| |||
| operating ratios | |||
| operating ratio | |||
| |||
| operating ratio; rate of working | |||
| |||
| Operating ratio | |||
|
exploitatiecoefficient : 3 短语, 2 学科 |
| 营销 | 1 |
| 运输 | 2 |
|
| |||
| operating ratios | |||
| operating ratio | |||
| |||
| operating ratio; rate of working | |||
| |||
| Operating ratio | |||
|
exploitatiecoefficient : 3 短语, 2 学科 |
| 营销 | 1 |
| 运输 | 2 |