波音７７７客机装配的激光准直技术用一系列小型元件和部件精密装配的大型结构（如商用飞机）存在许多对准和定位问题。最近发展的波音７７７客机，机翼长度约为２００英尺。所用部件（如机翼前缘），其对准精度必须达０．００５英寸，整个机翼结构装配公差必须在０．０３... Laser Collimation Technology for Boeing 777 Passenger Platforms There are many alignment and positioning problems with large structures (such as commercial aircraft) that are precision-assembled with a range of small components and components. The recently developed Boeing 777 has a wing length of about 200 feet. Parts used, such as the leading edge of the wing, must have an alignment accuracy of 0.005 in. And the entire wing assembly tolerance must be 0.03 ...