名词
中文翻译：线发射
同义词：
['wire emission', 'line current', 'line current emission']
例句：
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1. Theelectrons in the wire are emitted at a high rate.
电线中的电子以高速发射。
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2. The line emission is responsible for the color of the spectrum.
线发射负责光谱的颜色。
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3. The line emission is used to measure the strength of the magnetic field.
线发射用于测量磁场的强度。