第二章比较详细地描述了船舶航海信息的分类情况。航海信息主要有两种分类：静态信息和动态信息。
The second chapter contributes to the detailed description of data classification, in which the shipping information fall into two categories: static information and dynamic information.
第二章从理论和现实两方面进行论证，明确了建立船舶油污损害国家责任的必要性。
Chapter two analyzes the necessity to set up the state liability in the Marine oil pollution damages from both the theory and reality respects.
在第二章，文章着重论述了在建船舶的抵押权。
The paper secondly touches upon the mortgage of the vessel under construction.
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