| |||
delta | |||
chopping sea; choppy sea; pyramidal wave; triangle wave; triangular wave |
三角波 : 33 phrases in 11 subjects |
Air defense | 5 |
Artificial intelligence | 1 |
Chemistry | 1 |
Desert science | 1 |
Ecology | 1 |
Electronics | 1 |
Metallurgy | 1 |
Space | 1 |
Technology | 17 |
Telecommunications | 3 |
Textile industry | 1 |