backward sequence
| control
| backward sequence abbr. | |
| busin. | 后向序号 |
| el.mach. | 负序 |
| control abbr. | |
| hydroel.st. | 调节 |
| hydroel.st. од. | 控制 |
| IMF. | 管制 |
| manag. | 管理、管制; 核对; 存根 |
| met. | 调整; 操纵; 控制装置 |
| pest.contr. | 防治 |
| |||
| 后向序号 | |||
| 负序 | |||
| 逆序; 反向序 | |||
|
backward sequence : 26 phrases in 3 subjects |
| Business | 1 |
| Electric machinery | 23 |
| Electronics | 2 |