名词解释题通航净空（tong hang jing kong ）navigable clearance
名词解释题
通航净空（tong hang jing kong ）navigable clearance
参考解析
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相关考题：
桥下净空应符合以下（）规定。A、通航的河流，桥下净空宜符合通航标准的要求B、流放木筏的河流，桥下净空应符合流放木筏的要求C、跨下桥桥下净空，应符合被交叉公路、铁路、其他道路等建筑界限的规定D、桥下净空还应考虑排洪、流冰、漂流物、冰塞以及河床冲淤等情况
单选题A bridge over a navigable waterway is being repaired. There is a traveller platform under the bridge’s deck that significantly reduces the vertical clearance. If required by the CG district commander，how will this be indicated at night?（）AIllumination by flood lightsBA quick flashing red light at each lower cornerCA strobe light visible both up and downstreamDFixed amber lights under the extreme outer edges of the traveller
名词解释题通航净空