He could send enough electricity to light up not just one arc light, but eight.

他发出电能足以点亮一盏弧光灯， 而是八盏。

An arc light makes light when an electric current jumps across the space between two carbon rods.

当电流跃过两碳棒之时， 弧光灯就会发光。

Tom was eager to see how the man in Connecticut was using electricity to light up his eight arc lights.

姆很想看看康涅狄格州人是如何用电来点亮他八盏弧光灯。

After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.

他们打开强力弧光灯，看见一株株巨大石笋，有高达40英尺，象树干似向上长着，与洞顶悬挂下来钟乳石相接。