短语词组短语gas -bearing gyroscope 气浮陀螺仪gas bearing gyroscope 气浮轴承陀螺仪air bearing gyroscope [航]空气轴承陀螺仪gas s bearing gyroscope 气浮轴承陀螺仪air -bearing gyroscope 气浮陀螺仪 返回 gyroscope bearing