| |||
cyclic alteration | |||
cycling | |||
cyclic change | |||
periodic change | |||
periodical variation; fluctuation cyclical | |||
periodic variation | |||
cyclical variation | |||
cyclic variation | |||
| |||
cycling |
周期性变化 : 40 phrases in 14 subjects |
Air defense | 1 |
Aviation | 1 |
Business | 1 |
Ecology | 1 |
Electricity generation | 1 |
Electronics | 2 |
Engineering geology | 1 |
General | 5 |
Materials science | 1 |
Nautical | 2 |
Oil / petroleum | 1 |
Polymers | 1 |
Securities | 1 |
Technology | 21 |