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| 研制和试验 | |||
| 研制【开发】和试验 | |||
| 研制与试验 | |||
| development and test: 52 phrases in 10 subjects |
| Aviation | 17 |
| Business | 5 |
| Consulting | 1 |
| Earth sciences | 5 |
| Economy | 2 |
| Electronics | 3 |
| General | 2 |
| Information technology | 2 |
| Plastics | 1 |
| Space | 14 |
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