在氙气灯内，电流通过一个充满气体的显像管，弯曲成弧形。
This is commonly a xenon lamp, in which electricity is arced through a tube filled with the gas.
变厚的动脉壁使流通血液的管腔变细。
The thickened artery wall narrows the channel through which the blood flows .
在充满氙气的灯柱中的两个电极之间进行火花放电将产生“电离气体管”，电流通过该管流动，从而导致气体发光。
A spark discharge between two electrodes produces an "ionised gas tube" in the xenon gas-filled lamp piston through which electric current flows which in turn causes the gas to light up.
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