China has indisputable sovereignty over the South China Sea Islands (the Dongsha Islands, the XishaIslands, the Zhongsha Islands and the Nansha Islands) and the adjacent waters.
中国对南海诸岛及其附近海域拥有无可争辩的主权。
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Starting from the early 1990s, the Chinese navy has invited the related experts to conduct exhaustive hydrological and geological freshwater exploration over 19 islets on the XishaIslands.