长江口最大无人沙岛 (IMAGE) Science China Press Caption 长江口最大无人沙岛——九段沙岛(包括江亚南沙、上沙和中下沙)和北槽深水航道治理工程. 背景为2020年5月12日的Landsat卫星图像 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.