The dissolved nitrogen (DIN) concentrations in the Wujiang River basin were much higher than the global average values and the main form of nitrogen was nitrate nitrogen (NO3-N).
乌江流域溶解无机氮含量较世界平均水平高，其主要存在形式为硝态氮（NO_3-N）。
A critical point in the Loushanguan on the enemy line of retreat from the Wujiang River down by the Ministry of Qian Jun 3rd Brigade Lin Xiusheng two groups, terrified that if frightened.
扼守在娄山关上的敌人，是从乌江防线溃退下来的黔军第三旅林秀生部两个团，胆寒若惊弓之鸟。
The main source comes from the background load, namely natural background load and upstream contribution load from the upper reaches of the Yangtze River, the Jialing River and the Wujiang River.
污染负荷主要来自长江、嘉陵江、乌江上游的贡献和天然背景负荷。
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