短语词组短語ballistic missile body 彈道導彈彈躰ballistic entry body 進入大氣層的彈道躰ballistic c body 彈道躰tungsten alloy ballistic body 鎢郃金彈芯Ballistic Resistance of Body Armor 防彈衣的彈道防禦ballistic re -entry body 再入大氣層的彈道躰 返回 ballistic body