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   English
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operating irregularity
auto. 工作事故; 操作违章
cast.iron. 炉况失常
met. 操作故障; 【铁】炉况失常; 炉况紊乱
 English thesaurus
operating irregularity
avia., Canada A situation that occurs when ATS are being provided and when a preliminary investigation indicates that a hazardous situation or loss of separation may have occurred