HID Xenon gas lamp must operate under constant power supplying. Normally it is realized with power error detecting loop.
HID氙气灯必须工作在恒定功率条件下，通常采用功率误差检测环路来实现。
This is commonly a xenon lamp, in which electricity is arced through a tube filled with the gas.
在氙气灯内，电流通过一个充满气体的显像管，弯曲成弧形。
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.
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。
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