背最光源}ackgrnund saur}e通常指原子荧光光潜法的 辐射源，用子激发分析元素原子线的荧光。在原子吸枚光谱 分析中，用于背景校正的光源如氛灯也称背景光掉。
高级的卫生间还应该有部分背景光源。
Advanced toilet still should have partial setting light source.
本文叙述了采用T_2Y紫铜管的园筒试验，其引炸方式与背景光源均作了简化。
This paper describes the cylinder test with T2Y copper pipe in which the initiation method background light source are simplified.
该装置由离轴抛物面反射镜、十字靶标、背景光源、图像采集装置及其它附件组成。
The system is composed of off-axle paraboloid reflector, cross line target, background light, imaging collecting system and other devices.
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