摘 要: | backfire火药燃气后喷,或者指膛后火药及金属残屑;backthrust后推力;backblow后坐、后坐力;backhead手柄、机柄,亦称handle.backloading后送、撤退,指战斗时的装备、物资、伤亡人员的后送;back-up支持、辅助、备用设备;back-uparmament辅助武器;backupdevice备用(安全)装置;backupforce后备部队、支援部队;back-out旋出、取消、退火;back-spring反向弹簧;backstay拉簧;backstop托架;backpitch反螺旋;back rake后倾角;backrest座位靠背、车床跟刀架;backset制动装置、倒退;back shot消声射击;back-roll反绕、倒卷;backplan底视图.
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