compass-controlled gyroscope
... compass with detachable legs ==> 活脚圆规 compass-controlled gyroscope ==> 磁罗盘修正陀螺仪 compasses key ==> 圆规扳子 ...
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compass controlled gyroscope
... 磁罗盘修正器 corrector of magnetic compass 磁罗盘修正陀螺仪 compass controlled gyroscope 横扫千军硬盘修正版及汉化补丁 total annihilation ...
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