短语词组短語boresighting kit 成套校靶用具convergence boresighting 交叉校靶armament boresighting 軍械校靶boresighting error 瞄眡誤差parallel boresighting 平行校靶boresighting adjustment 校靶調整Aircraft Boresighting 飛機校靶Bolt Down Boresighting 固定靶 返回 boresighting