Terms for subject Earth sciences containing gyro

English	Chinese
directional gyro	指向陀螺
directional gyro	定向陀螺仪
displacement gyro	位移陀螺仪
floated gyro	悬浮式陀螺
gyro erected optical navigation	垂直陀螺光学导航
gyro theodolite	陀螺经纬仪
rate and free gyro	二自由度与三自由度陀螺仪
vertical gyro	垂直螺旋仪 (scope)
vertical gyro	垂直陀螺仪 (scope)
vertical reference unit gyro	带垂直基准装置的陀螺