navigational instruments meaning in English

导航仪器

Gyroscopes are used in navigational instruments for ships, aircraft, and spacecraft .
陀螺仪用于船舶、飞机和宇宙飞船中的导航设备。
Shipbuilding - navigational instruments - radar - vocabulary
造船.导航仪.雷达.词汇
Problems encountered in the teaching of navigational instrument in high vocational colleges and their countermeasures
高职高专航海仪器课程教学存在的问题与对策
Navigational instruments . system omega and differential omega receivers for ships . operational and performance requirements . methods of testing and required test results
导航仪表.船舶用奥米伽系统和差动奥米伽接收器.操作和性能要求.试验方法和要求的试验结果