记录和分析了高功率激光焊接中工作区的紫外和红外信号，着重分析了双波段信号与离焦量变化的对应规律。
Dual waveband signals in high power laser welding were recorded and analyzed, especially, the law between the signals magnitude and the defocusing was discussed.
导出了共焦双光子荧光显微镜探测光强随荧光波长变化的解析表达式。
The analytic expressions of the fluorescent intensity are derived in two_photon fluorescence confocal imaging.
为了补偿双波段航空相机在复杂环境下产生的离焦，设计了一套调焦机构。
To compensate the defocusing of a dual-band aerial camera in a complicated environment, a focusing mechanism is designed.
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