“投影仪”的英语可以翻译为：[计] projector ...

陀螺仪用于船舶 、 飞机和宇宙飞船中的导航设备.Gyroscopes are used in navigational instruments for ships, aircraft, and spacecraft.借环形激光陀螺仪的技术,加以改进使之适用于流体流量的测量.Techniques borrowed from the ring laser gyro can be adapted to fluid flow measureme...

“日影仪”的拼音为：rì yǐng yí...