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JakeLewis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。
Form dough into ball and place on lightly greased baking sheet. With sharp knife, cut an "X" 1/3 inch deep into top of loaf.
将面团揉成圆球状后放到抹了油的烤纸上，用把锋利的刀在面团上划个十字型，大约1/3寸深。
Worn surface morphology and element chemistry configuration of steel ball were analyzed by means of X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM).
用扫描电子显微镜和X射线光电子能谱仪观察分析了磨损表面形貌和元素化学形态。
X axis and Y axis adopt ball spiral rods with excellent precisions and low friction factors.
轴采用滚珠螺杆传动精度佳，摩擦系数小。
Following the women's 4 x 200m freestyle relay final, CBC commentator Byron MacDonald, who thought his microphone was off, said: "The little 14-year-old from China dropped the ball, baby."
在女子4×200米自由泳接力决赛后，加拿大广播公司解说员拜伦•麦克唐纳以为他的麦克风已经关掉，私下评论说：“来自中国的14岁小将发生了失误，哈哈。
The running of axes X and Y is driven by servo motor and ball screw shaft and the punching position is controlled by double axes numerical control system.
轴及Y轴运行由伺服电机及滚珠丝杠驱动，由双轴数控系统控制冲孔位置。
The running of axes X and Y is driven by servo motor and ball screw shaft and the punching position is controlled by double axes numerical control system.
轴及Y轴运行由伺服电机及滚珠丝杠驱动，由双轴数控系统控制冲孔位置。
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