红外紫外双头上光机操作简单，一机两用，维修方便，特别适用于各大、中、小型印刷厂使用。
It is simple to operate with one machine two USES and easy to maintain, especially suitable for printing houses in large, medium and small scales.
对双曲余弦高斯光束通过光阑透镜分离系统的轴上光强分布做了详细的数值分析。
The axial intensity distribution of Hermite-cosh-Gaussian (HChG) beams passing through a system with the aperture and lens separated is studied numerically.
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