Light takes seven microseconds to cross a sample only eight thousandths of an inch long; in the vacuum of space, light would go more than a mile in the same time.
光穿过只有八千分之一英寸长的试样需要七微秒，而在空间真空中，光在同样长的时间内可能会行驶一英里多。
Shop equipment and hand tools, such as router, templates and hole saws, heat blankets and thermocouples, vacuum bags and caul plates, measuring devices, conversion of metric and inch system.
车间设备和手动工具，如刨机，模板，孔锯，加热毯，热电偶，真空袋，测量设备，公英制转换工具等。
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