safe fire direction安全: safe; secure; safety; securi ...安全射击高度: safe fire altitude安全射击扇面: safety arc最小安全射角: minimum quadrant elevation射向: direction of fire; directive; lien of fire下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:安全射向,即可在微信中查询翻译