每块金牌都有1.5%多来自于从阴极射线管，电脑零件，电路板和其他电子垃圾中提取的金属。

A little more than 1.5 percent of each gold medal was made with metals harvested from cathode ray tube glass, computer parts, circuit boards and other trashed tech.

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但它的一个缺点就是，激光功率从零升到最大值的过程，会使粒子或X射线束具有一定的能谱分布。

One shortcoming of these beams is that they typically have a range of energy, caused by the gradual rise of laser power from zero to its maximum level.

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针对零件对称性的自动识别问题，提出了一种基于“射线探测”的新方法。

Proposed here is a new method based on ray detecting for part symmetry automated recognition.

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So, when the voltage difference between the plates is zero, or when we just don't have the plates there at all, the cathode rays are not bent, they just go right in a straight line, and they can be detected on this screen.

拐弯来测试它们是否带电,当两板之间电压为零，或者根本就,没有这两个板时，阴极射线是一条直线,它可以在屏幕上。

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