安全措施accident prevention;safety action;safety measures详细»
安全措施safeguard;security;security arrangement;security measure详细»
安全措施〔名词〕accident prevention详细»
安全措施accident prevention;safety measures;safety pravtice详细»
安全措施safety precaution;sefety action详细»
安全措施accident prevention;safety measures;safety provision详细»