 |
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| improvement of quality | |||
| improvement in quality; qualitative improvement | |||
| quality improvement | |||
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| quality improvement | |||
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| quality improvement | |||
| 质量改进: 31 phrases in 11 subjects |
| Aviation | 14 |
| Business | 1 |
| Commerce | 3 |
| Economy | 3 |
| Electronics | 1 |
| General | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Oil processing plants | 1 |
| Space | 2 |
| Technology | 1 |