• 飞行徽章fēi háng huī zhāng aviation badge
• 国际民间航空组织guó jì mín jiān háng kōng zǔ zhī International Civil Aviation Organization, ICAO
• 航空háng kōng aviation; voyage
• 航空保险háng kōng bǎo xiǎn aviation insurance
• 航空汽油háng kōng qì yóu aviation gasoline; supercombat gasoline; avags
• 航空术háng kōng shù aeronautics, aviation
• 航空学háng kōng xué aeronautics, aerostatics, aviation
• 航空学校háng kōng xué xiào aviation academy, flying school
• 航空医学háng kōng yī xué aeromedicine, aviation medicine
• 民航mín háng civil aviation
• 民用航空mín yòng háng kōng civil aviation; commercial aviation
• 安全ān quán anchor-hold, safety, security, sureness
• 安全部ān quán bù MSS(Ministry of State Security)
• 安全策略ān quán cè luè security policy
• 安全地ān quán dì in security, safely, surely, without accident
• 安全局ān quán jú security bureau
• 安全理事会ān quán lǐ shì huì Security Council
• 安全认证ān quán rèn zhèng security certificate; safety certificate
• 安全性ān quán xìng security
• 保安bǎo ān ensure public security
• 保安员bǎo ān yuán security officer; security guard; security staff
• 保卫bǎo wèi defend from, entrench, fence against, safeguard, security, ward
• 保障国家安全系统bǎo zhàng guó jiā ān quán xì tǒng security system
• 保证金bǎo zhèng jīn bail, caution money, deposit, recognizance, security
• 报案bào àn report a case to the security authorities

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