八角深水港
Bajiao deep water harbour
北槽深水航道
deep-water channel in the north channel
采油污水深度处理技术
Astewater treatment technology of oil extraction
超型深水沉井
very large deep water open caisson
大水深斜坡防波堤
deep-water inclined breadwater
大型深水航道
large-scale deep-water channel