性质：发射光谱分析光源中两个电极之间的空隙，又称电极间隙(electrode gap)。待测试样在此间隙内被蒸发和激发，发射出待测元素的特征谱线，用于光谱定性和定量分析。
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Inter-electrode gap 加工间隙
electrode gap width 电极间隙宽度
spark electrode gap 火花电极间隙
inter electrode gap 极间间隙
balanceable inter-electrode gap 极间平衡间隙
inter electrode gap controlling 间隙控制
Gap of electrode 上下电极间距 ; 上下
three electrode sphere gap 三电极球隙
air-gap electrode 气隙电极
Based on the model, the relationship between the main pulse frequency of supply power and the balanceable inter-electrode gap is discussed.
给出了脉冲电化学加工极间平衡间隙的数学模型，并据此讨论了高频群脉冲电化学加工中，电源主脉冲频率与平衡加工间隙的关系。
Such horizontal magnetic field will make the arc move out of the electrode gap, and reduce the interrupting ability of the vacuum interrupters.
这一横向磁场会将电弧吹向弧隙外侧，削弱了真空灭弧室的开断能力。
The results show that the long electrode gap leads to the positive column which is caused by the climbing voltage on the cathode surface due to the accumulation of positive ions.
结果表明，放电单元采用大电极间距可获得正柱区放电，正柱区的形成是正离子在阴极鞘层区不断积累将电位抬高所致。
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