被电流激活后，汞原子发出紫外光，轰击被覆在电子管内部的磷。
Excited by the current, the mercury atoms emit ultraviolet light, which bombards the phosphor coating on the inside of the tube.
被电流激活后，汞原子发出紫外光，轰击被覆在电子管内部的磷。
Excited by the current, the mercury atoms emit ultraviolet light, which bombards the phosphor coating on the inside of the tube.
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