标准中文名： 船舶和航行技术.技术文献图形符号.第31部分:电气安装 标准英文名： Ships and marine technology - Graphical symbols for technical documentation - Part 31: Electrical installat..
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船舶航行在全世界各地的海洋，越来越需要获得来自陆地和故障诊断与维护中心强有力的技术支持。
The ships what under sail on the oceans of all parts of the worlds want to obtain the powerful technical support from land or the failure diagnosis and the maintenance center more and more.
第四条船舶和船上有关航行安全的重要设备必须具有船舶检验部门签发的有效技术证书。
Article 4 Vessels and their major equipment relating to navigation safety must have valid technical certificates issued by vessel inspection departments.
船舶航行无限航区，受通信、海况、天气等影响难以获得厂商和故障诊断与维护中心强有力的技术支持。
Due to the barrier of communication, rough sea conditions, bad weather and other factors, it is hard for ocean-going vessels to obtain technical support from the manufacturers and maintenance center.
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