Before commencing descent into hong kong , the flight crew were given a mean surface wind of 300 degrees at 35 knots and a runway visual range of 650 metres in heavy rain by the atis 在开始降落前，机员从atis得到的资料为地面平均风向300度风速每小时35海里跑道视程650米及有大雨。
Before commencing descent into hong kong , the flight crew were given a mean surface wind of 300 degrees at 35 knots and a runway visual range ( rvr ) of 650 metres in heavy rain by the atis 在开始降落前，机员从atis得到的资料为地面平均风向300度、风速每小时35海里、跑道视程650米及有大雨。
Visibility 600 m ; runway visual range representative of the touchdown zone for left one of runway 07 is 1000 m and the runway visual range values have shown an upward tendency during previous 10 minutes 能见度600米代表07左边跑道著陆区的跑道视程为1000米，而跑道视程的数值在过去10分钟有上升趋势
Visibility 600 m ; runway visual range representative of the touchdown zone for left one of runway 07 is 1000 m and the runway visual range values have shown an upward tendency during previous 10 minutes 能见度600米；代表07左边跑道著陆区的跑道视程为1000米，而跑道视程的数值在过去10分钟有上升趋势
A : a transmissometer is a piece of highly sophisticated optical equipment for measuring the visual range . its accuracy depends on the cleanliness of the lens , the same way as a pair of soiled glasses will blur one s vision 答:跑道视程透射表是一部很精确的光学仪器，镜面的清洁程度会影响它的准确性，好像眼镜沾了污垢，看东西也不清楚一样。
A : my work includes maintenance and assistance in the repair of meteorological equipment such as cleaning the runway visual range transmissometers regularly and maintaining the stevenson screens in a number of automatic weather stations awss in and around the airport 答:我的日常工作包括保养及协助维修机场的各类气象仪器，例如定时清洁跑道视程透射表，修理机场范围内众多自动气象站的百叶箱等。
Originating airport name , metar speci issue time , wind direction speed gust , wind direction variation , visibility , runway visual range , weather during time of observation , cloud , air temperature dew - point , qnh pressure measured at airport with adjustment made to suit aeronautical use , weather during the past hour but not at time of observation , wind shear information , trend - type landing forecast 发出资料的机场名称发出metar speci的时间风向风速阵风风向转变能见度跑道视程观测时的天气云层气温露点qnh在机场录得的气压，经调整以配合航空用途过去一小时但非观测时的天气风切变资料飞机降落用的趋势预测。
Speci is special weather report issued when there is significant deterioration or improvement in airport weather conditions , such as significant changes of surface winds , visibility , cloud base height and occurrence of severe weather . the format of the speci report is similar to that of the metar and the elements used have the same meaning . the identifier metar or speci at the beginning of the weather report differentiates them 发出资料的机场名称、发出metarspeci的时间、风向风速阵风、风向转变、能见度、跑道视程、观测时的天气、云层、气温露点、 qnh (在机场录得的气压，经调整以配合航空用途) 、过去一小时(但非观测时)的天气、风切变资料、飞机降落用的趋势预测。
