Light takes seven microseconds to cross a sample only eight thousandths of an inch long; in the vacuumof 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。
2
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.