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维修等级 | |||
| |||
维持营养维持家畜正常生活而不生产产品的营养水平 | |||
维持保证金水平 | |||
维持营养 | |||
维修等级; 维修活动等级 | |||
维修级别 | |||
稳定水平 | |||
维护水平 | |||
维护级 |
maintenance levels: 32 phrases in 11 subjects |
Agriculture | 1 |
Animal husbandry | 1 |
Automobiles | 2 |
Aviation | 17 |
Business | 1 |
Electronics | 1 |
Management | 1 |
Reliability | 2 |
Space | 3 |
Technology | 1 |
Telecommunications | 2 |