 |
| |||
| available time at the face; available working time on faces; effective working time in the face or roadhead; face available time | |||
| Arbeitszeit vor Ort: 1 短语, 1 学科 |
| 一般 | 1 |
|
| |||
| available time at the face; available working time on faces; effective working time in the face or roadhead; face available time | |||
| Arbeitszeit vor Ort: 1 短语, 1 学科 |
| 一般 | 1 |