主保险丝断了，这个楼的灯都黑了。
The master fuse blew out, and all the lights went off in the building.
这些变压器经过清漆浸泡，运行宁静，并配置两个主保险丝和一个次保险丝。
The transformers are varnish impregnated for quiet operation and are supplied with two primary fuses and one secondary fuse.
这些变压器经过清漆浸泡，运行宁静，并配置两个主保险丝和一个次保险丝。
The transformers are varnish impregnated for quiet operation and are supplied with two primary fuses and one secondary fuse.
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