填充气体（Filling Gas）：白炽灯主要靠的是加热中间的钨丝以产生光亮。钨丝在每次开启时都会逐渐蒸发，而填充气体的作用是减小钨丝的燃烧量以增加灯泡的...
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只需要30分钟才能填充气体瓶在哪里可以超过3小时的充电电池和电池可以体重两倍的氢系统。
It only takes 30 minutes to refill the gas bottles where is can take over 3 hours to recharge an electric battery and a battery can weight twice as much as the hydrogen system.
Hindenburg号爆炸事件表明采用氢气作为飞艇的填充气非常危险，但新的填充气采用氦气——一种不可燃气体，而不是终止采用飞艇技术。
The explosion of the Hindenburg showed the dangers of hydrogen as a lifting gas and resulted in new emphasis on helium, which is not flammable, rather than ending the reign of rigid airships.
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