The Complete Saga on Blu-ray 六部曲完全版
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
本文根据光线轨迹方程,讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
The airline had not been searching unaccompanied baggage by hand, but only screening it on X-ray machines.
这家航空公司一直没有手工检查非随身行李,只是在X光机上检查。
You might still want to go for an X-ray, however, just to be on the safe side.
但你也许还想去拍张X光片,为保险起见。
Pierce agreed. This week on our series, Ray Freeman and Steve Ember continue the story of the presidency of Franklin Pierce.
VOA: special.2009.05.07
Because it came from optics, you know, rays of sunlight and so on And in fact, even when we first started pulling synthetic fiber, the first synthetic fiber cellulose was referred to as ray on, because it looked like a ray that was being pulled.
因为它源自光学,比如太阳光线等等,实际上,及时当我们首先开始抽出,人造纤维,第一根人造纤维的纤维素,叫做光线,因为那条在被抽出的纤维素,看起来像是一道光线。
It allows us to look not just at the anatomy of what's going on inside your body like an x-ray does, but to look at the chemistry, the biochemistry of what's happening inside a particular organ or tissue in your body.
这种方法不仅能够像X射线那样,使我们从解剖学的角度观察体内的情况,还能了解到,在体内特定的组织和器官中,发生的化学 确切说是生物化学过程
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