flux gate compass 磁通量闸门罗盘 ; 磁闸罗盘 ; 磁通门罗经

gyro flux-gate compass 陀螺感应同步罗盘 ; 陀螺磁通门罗经 ; 陀螺感应罗经 ; 陀螺磁罗经

flux-gate compass 磁通量阀门罗盘 ; 陀螺稳定地磁感应罗经

gyro-flux-gate compass indicator 感应式陀螺磁罗盘指示器

gyro flux gate compass 陀螺磁门罗盘

pendulum flux-gate compass 摆式磁通门罗盘

distant-reading flux-gate compass 远读咸应罗盘

distant reading flux gate compass 远读感应罗盘