卤素灯的钨灯丝在使用过程中会慢慢的蒸发，直到最后断掉。由于没有卤素灯那样脆弱的钨灯丝，氙气气体放电灯十分耐用，其使用寿命至少不低于汽车的使用寿命。
Lacking the halogen's delicate tungsten filament, which slowly evaporates with use until it finally “blows”, xenon discharge lamps are robust enough to last at least the lifetime of the car.
卤素灯的钨灯丝在使用过程中会慢慢的蒸发，直到最后断掉。由于没有卤素灯那样脆弱的钨灯丝，氙气气体放电灯十分耐用，其使用寿命至少不低于汽车的使用寿命。
Lacking the halogen's delicate tungsten filament, which slowly evaporates with use until it finally "blows", xenon discharge lamps are robust enough to last at least the lifetime of the car.
它是作用是表征钨从灯丝蒸发的速度。
It is a function of how fast the tungsten evaporates from the filament.
一种通过灯丝受热而发光的电灯泡，灯丝材料通常是钨，受热达到发出黄色或白色光的温度。
An electric light bulb that produces light by heating a filament, usually of tungsten, to a temperature at which yellow or white light is produced.
一种通过灯丝受热而发光的电灯泡，灯丝材料通常是钨，受热达到发出黄色或白色光的温度。
An electric light bulb that produces light by heating a filament, usually of tungsten, to a temperature at which yellow or white light is produced.
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