本实用新型是一种海、河港口用水上助航活节式灯桩。
The utility model relates to a free-floating light beacon of navigational aid on water in the sea, a river, or a harbor.
提出了一种结合专家系统、零件族库实现基于产品配置的灯桩CAD系统的方法。
A Pharos CAD system was proposed, in which the expert system and the parts family are adopted.
提出了一种结合专家系统、零件族库实现基于产品配置的灯桩CAD系统的方法。
A Pharos CAD system was proposed, in which the expert system and the parts family are adopted.
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