本文将对海上油污强制责任保险扩大化的必要性和作用进行分析。
This paper analyzes the necessity and function of extending the coverage of oil pollution's compulsory liability insurance.
之后剖析了我国设立创业板市场的必要性和作用，从而奠定了本文的理论基础。
Then the paper analyses the necessity for China to establish its own GEM market and the role it plays, thereby forming the theoretical basis of this paper.
简述了煤田地质勘查监理的必要性和作用，介绍了勘查监理应注意的问题，提出了监理步骤与要求。
The paper stated necessity and function of supervision in geological exploration, introduced matters needing attention in exploration supervision, process and requirement as well.
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