ulr meaning in Chinese

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They have for many years been extensively involved in ultra long range ( ulr ) flying , and are currently involved in ulr flying
他们自多年前至今一直累积超长航距飞机的飞行经验。因此，他们绝对合资格就飞行员疲劳等所有飞航事宜提出专业意见。
In response to press enquiries today ( april 5 ) on the flight time limitations ( ftl ) scheme , a spokesman for the civil aviation department ( cad ) said that the capability of today s aircraft to support ultra long range ( ulr ) operations had necessitated new guidelines to be developed to help avoid the onset of fatigue in aircrew , and that the views of the aviation industry would be fully considered before the guidelines issued under the scheme were finalised
二年四月五日民航处今日（四月五日）回应报界查询针对超长航距运作而制订的飞行时间限制计划时表示，由于现代飞机续航能力不断增加，故有需要制订新指引，避免飞行人员过劳。处方在最后决定有关计划的指引前将全面考虑航空业界的意见。