(Topics include but are not limited to)
Construction of offshore platforms
Artificial Island
Oil and gas exploration and extraction platform
Floating oil storage tank
Floating refinery
Floating airport
Diving techniques
undersea mining
Subsea Tunnel Engineering
submarine pipeline 
Marine resource development and spatial utilization
Sonar and Converter
Acoustic systems and metrological calibration
Sound propagation and scattering
Acoustic oceanography
Ground acoustic inversion
Bioacoustics
Seismic acoustics
The coherence and volatility of signals
Environmental remediation
Carbon Neutrality
Carbon peak
Residual temperature collection
energy efficiency 
Low carbon technology
Waste recycling and utilization
Comprehensive utilization of resources
environmental science
Resource integration
Green lighting
circulatory system