variable-cycle
| operation
| variable cycle abbr. | |
| space | 可变周期 |
| operation abbr. | |
| gen. | 运作 |
| hydroel.st. | 运行; 管理 |
| hydroel.st. од. | 操作 |
| IMF. | 经营; 操作 |
| math. | 函数; 运算 |
| sport. med. | 手术 |
| wind. | 处理 |
| |||
| 可变周期 | |||
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variable-cycle : 18 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 4 |
| Business | 1 |
| Electronics | 4 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 2 |