1Recovery of Subsea Oil Field Tele-control Through Repairing Underwater Power Communication Failure by Using Cable Interconnection TechnologyMAO Jiayou, LIU Hao1-122Research on Measures and Technology System for Enhancing Coastal Blue Carbon Sink Based on Natural EndowmentLIU Zhenhang, LIU Dahai, CHI Yuan, LI Yanping13-243Application of Sonar Detection Technology in Construction of Artificial ReefsJIANG Fengbiao, YANG Long, DING Jisheng, LI Jie25-354Numerical Analysis on Water Body Resonance Frequency Domain Within Offshore Floating-Ring PlatformZHANG Luyao, DING Jun, MAO Yanjun, MA Xiaozhou36-435Experimental Study on Wave Total Force Subjected by Deepwater Jacket Foundation Structure Under the Extreme Wave ConditionYI Jianjun, SHEN Yusheng, WU Jianjun, ZOU Guoliang44-516Spatiotemporal Evolution of Erosion and Deposition in the Current Yellow River Estuary Under Different Water and Sediment RegimesWU Wenjuan, FAN Yongyong52-607Calculation of the Extreme Wave Heights in Offshore Wind Farm in Binhai, JiangsuCAI Li61-748Current Situation and Application Prospect of Beach Nourishment Evaluation in ChinaSHAO Chao, TANG Yingying, SUN Wei, WANG Jianqing, PAN Tingyao75-879Discussion on the Method for Tidal Current Quasi-Harmonic AnalysisLIU Xincang, YUAN Daowei, WANG Xiaofeng, ZHANG Yongqiang, DONG Xiangke, WANG Yongkang88-9810Analysis of Precipitation Characteristics in Qingdao Since 1981GUO Lina, MA Yan99-110