gb-t75-94安全: safe; secure; safety; securi ...防范: be on guard; keep watch; kee ...工程: engineering; project; progra ...程序: procedure要求: ask; demand; require; claim; ...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:安全防范工程程序要求，即可在微信中查询翻译
