![Photo taken on Aug. 19, 2018 shows dredging vessels in Qidong, east China\'s Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)](http://www.ecns.cn/hd/2018/08/20/55e8526ca2f84587aa3df9934c510e41.jpg)
Photo taken on Aug. 19, 2018 shows dredging vessels in Qidong, east China's Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)
![Photo taken on Aug. 19, 2018 shows the dredging vessel in Qidong, east China\'s Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)](http://www.ecns.cn/hd/2018/08/20/af3fcc9353844bb39919bbfe74c61169.jpg)
Photo taken on Aug. 19, 2018 shows the dredging vessel in Qidong, east China's Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)
![Photo taken on Aug. 19, 2018 shows the dredging vessel in Qidong, east China\'s Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)](http://www.ecns.cn/hd/2018/08/20/c38fb992ec7047218af4300ecbd04335.jpg)
Photo taken on Aug. 19, 2018 shows the dredging vessel in Qidong, east China's Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)
![Photo taken on Aug. 19, 2018 shows the dredging vessel in Qidong, east China\'s Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)](http://www.ecns.cn/hd/2018/08/20/c5bf301d52a64574801bc64453984356.jpg)
Photo taken on Aug. 19, 2018 shows the dredging vessel in Qidong, east China's Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)
![Photo taken on Aug. 19, 2018 shows dredging vessels in Qidong, east China\'s Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)](http://www.ecns.cn/hd/2018/08/20/2791dc5f455944b59d5f983a4bef93cb.jpg)
Photo taken on Aug. 19, 2018 shows dredging vessels in Qidong, east China's Jiangsu Province. Two dredging vessels lauched recently. The 108.5-meter-long vessel can dig as deep as 30 meters under the sea floor and store 6,500 cubic meters of silt. (Xinhua/Xu Congjun)