凡是商船特别是航行世界各国间的船帕必须具有船级。船舶的入级是代表着船舶具备安全航行可靠的技术条件,世界各保险机构是根据船舶取得入级后才进行保险。我国的船级和船级符号如下: All merchant ships, especially those engaged in navigating the world, must have classification. The classification of a ship represents the technical conditions for the ship to have a safe and secure navigation. The insurance agencies in the world are insured on the basis of the vessel’s classification. China’s classification and classification symbols are as follows: