Ball Aerospace's Jake Lewis is reflected in one of the mirrors on a James Webb space Telescope Array, in the X-ray and cryogenic facility for testing.

波尔航空航天的Jake Lewis正在向我们展示一组镜子—詹姆斯·韦伯太空望远镜阵列，它正在低温和X射线中进行测试。

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At last, the author obtained the equation of ray trace in the GRIN ball lens with the index profile which is quadratic and drew some important conclusions.

研究了二次抛物线型的GRIN球透镜的光线轨迹方程序；得出其轨迹为椭圆曲线及一些重要结论。

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In Chapter 2, the refractive index distribution and ray trajectory of GRIN ball lens are studied in theory.

第二章主要从理论方面研究梯度折射率球透镜的折射率和光线轨迹。

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After a Ray Rice fumble gave the ball back to the 49ers, Akers kicked his third field goal of the contest.

CNN: Ravens fly high, win Super Bowl

Baltimore quarterback Joe Flacco is going to spend a lot of time handing the ball off to running back Ray Rice and watching him try to follow one of the NFL's last fullbacks (Vonta Leach) through the San Francisco defense.

WSJ: Viewer's Guide: Three Ways to Watch the Super Bowl

Specialist Ray Elwood (Joaquin Phoenix) is having a ball.

NEWYORKER: Buffalo Soldiers