English to Chinese Tech/Engineering Electronics / Elect Eng UPS Power Supply

这里的 distributions 估计会是什么意思？

下面这部分是客户拿到 UPS 新机后的启动操作指南中关于 rectifiers（整流器）的内容。

For correct start-up of the rectifiers, follow the instructions mentioned hereunder:

- Make sure all circuit breakers on d.c. side are OPEN (OFF.)
- Set to position OFF the changerover switches for RECTIFIERS STARTUP, installed on the front of the panels and on the front of cards A.
- Make sure changeover switch on the front of card LCRD (charge select.) is in position AUTOM, in rectifier RA & (RB) logic box.
- Connect a.c. supply cables to relevant terminals, respecting the cyclic sense.
- Connect battery cables, unit cables and【distributions】to relevant terminals, paying attention to the polarities specified.
- Close main input circuit breaker 52-1 (52-2).
...

非常感谢！