sum-frequency
| generation
| sum frequency | |
| tech. | 总频率 |
| tech. од. | 和频 |
| generation | |
| gen. | 一代; 世 |
| gen. од. | 代 |
| geol. | 生成; 发生 |
| met. | 发 生; 生产; 振荡; 发电; 世 代 |
| |||
| 总频率; ★ 和频 | |||
| |||
| 和频 | |||
|
sum-frequency : 4 phrases in 2 subjects |
| Electronics | 3 |
| Space | 1 |