这并不是俄国人第一次发现黑龙江(一种说法是黑龙江是世界第六长的河，超过湄公河和刚果河的长度，流域面积超过长江)。
It was not the first time that Russians had stumbled on the Amur, by some measures the world's sixth-longest river, longer than the Mekong or the Congo and draining a basin bigger than the Yangzi's.
它的干流长度253公里，流域面积达5543平方里，为湘江在湘北的最大支流。
The length of the trunk stream of 253 km, the basin area of 5, 543 sq. miles, for the Xiangjiang River in Xiangbei the largest tributary.
它的干流长度253公里，流域面积达5543平方里，为湘江在湘北的最大支流。
The length of the trunk stream of 253 km, the basin area of 5,543 sq. miles, for the Xiangjiang River in Xiangbei the largest tributary.
探讨与香溪河具有相似纬度、相似河流长度和流域面积，同为长江上游支流的九龙河和冈曲河的大型底栖动物的群落结构特征与香溪河的差异。
The three streams had similar latitude, river length and watershed area. All were the tributaries of the Yangtse River and located in the upstream areas.
探讨与香溪河具有相似纬度、相似河流长度和流域面积，同为长江上游支流的九龙河和冈曲河的大型底栖动物的群落结构特征与香溪河的差异。
The three streams had similar latitude, river length and watershed area. All were the tributaries of the Yangtse River and located in the upstream areas.
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