 |
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| 计划产品改进法 (美国和北约的一种武器装备改进方法) | |||
| planned product improvement: 7 phrases in 4 subjects |
| Air defense | 1 |
| Business | 1 |
| Electronics | 2 |
| Space | 3 |
|
| |||
| 计划产品改进法 (美国和北约的一种武器装备改进方法) | |||
| planned product improvement: 7 phrases in 4 subjects |
| Air defense | 1 |
| Business | 1 |
| Electronics | 2 |
| Space | 3 |