gy.ro.com.pass
n.（名词）A compass with a motorized gyroscope whose angular momentum interacts with the force produced by the earth`s rotation to maintain a north-south orientation of the gyroscopic spin axis, thereby providing a stable directional reference.陀螺罗经：一种装有机动陀螺仪的罗盘，由于陀螺仪的角动量与地球的自转产生的力相互作用，使陀螺转轴一直保持南北方向，从而提供一个稳定的方向指示
