How do you short the power rails together at signal frequencies but not at DC? Yes, a capacitor again!

那你如何把电源导轨在音频信号的频率，而不是直流时，短接到一起？是的，还是靠电容！

youdao

Parallel rails had long been used in mining operations to move bigger loads, but horses were still the primary source of power.

在采矿作业中，平行铁轨早已被用来运送大件的货物，但马匹仍然是主要的运输工具。

youdao

He fell off the 20ft-high bridge, landed among power cables and ended up on the rails.

他从20英尺高的桥上摔下来，落在电缆之间，最后落在铁轨上。

youdao

On the rail network, Mr Hammond said night time "ghost trains" were being run in an attempt to keep lines open but "build up of ice on third rails across the Southeastern and Southern networks have led to loss of power and trains being stranded, causing severe delays and cancellations".

BBC: Labour berates 'complacency' of snow response