We have researched the forming condition of gas hydrate in the South China sea according to the physical oceanography, palaeo-climate, sedimentary environment, and tectonic environment.
从物理海洋、古气候、沉积环境和构造环境分析入手，研究了南海天然气水合物的形成条件。
Compared with the previous year, the water pollution in Bo Sea and East Sea is more serious while the offshore water quality in Yellow Sea and South China Sea remains stable in good condition.
与上年相比，渤海和东海近岸水体污染加重，黄海和南海近岸水质基本稳定，水质较好。
South China Sea has the most complex oceanic geologic hazard condition and most potential danger.
南海是我国海洋灾害地质条件最为复杂、潜在地质灾害危险性最大的海区。
Under the condition of western zone oil field in South China Sea, plugging agent formulas and their toxicity, matching technology and their support agents were researched in the paper.
在南海西部油田条件下，针对海上堵水存在问题，从堵剂配方、堵剂环保性能评价、堵水工艺和配套用剂这3个方面开展 研究。
Under the condition of western zone oil field in South China Sea, plugging agent formulas and their toxicity, matching technology and their support agents were researched in the paper.
在南海西部油田条件下，针对海上堵水存在问题，从堵剂配方、堵剂环保性能评价、堵水工艺和配套用剂这3个方面开展 研究。
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