When the flash tube is triggered, light from it penetrates the ruby.
当打开闪光灯时，它所发出的亮光穿透红宝石。
The purpose is to improve the performance of flash X-ray tube produced at present time.
使目前生产的闪光X射线管性能得到进一步改进。
The purpose is to improve the performance of flash X-ray tube produced at present time.
使目前生产的闪光X射线管性能得到进一步改进。
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