例如，在有些地区，河流三角洲将有机物质和溶解的微量元素注入海洋，目前还不清楚所有这些错综复杂的相关进程将如何影响水的化学性能。

In areas where river deltas inject organic material and dissolved trace elements into the sea, for instance, it's not clear how all of the intricately related processes will affect water chemistry.

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与此同时，城市化进程不断加大，目前城市化率已达72.7%，珠江三角洲已形成由多个城市组成的，多元化产业带相互维系的城市群落。

At the same time, process of urbanization unceasingly quickened, reaching 72.7% at present. Zhujiang Delta has become a zone of city group in which multiple industrial belts are located together.

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