prototype development
| phase
| prototype development | |
| space | 原形机研制; 样机研制 |
| phase | |
| el. | 瞬时相位; 相元件 |
| hydroel.st. | 阶段 |
| met. | 时期; 方面 |
| phys. | 物相; 相 |
| tech. | 相位; 相; 状态 |
| |||
| 原形机研制; 样机研制 | |||
| 原型机研制 | |||
|
prototype development : 22 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 5 |
| Aviation | 1 |
| Commerce | 1 |
| Electronics | 5 |
| Space | 5 |
| Technology | 4 |