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Zhejiang is the province with the longest coast and the largest number of islands in China. Since the beginning of the new century, the provincial party committee and the provincial government have reviewed the situation and put forward the strategic goal of building a strong province of marine economy at the third provincial marine economy work conference held in 2003, and included this goal in the "August 8th Strategy". In 2005, the total marine economy reached 300 billion yuan, accounting for more than 8% of the province's GDP.

To develop the ocean, the ship takes the lead. The development of the ship industry should first be based on the ship design, manufacturing and maintenance industries. Shipbuilding is a big industry, because it gathers the technical essence of machinery and other industries, and engine is one of them. Although there are many kinds of motors at present, as a hydraulic motor of planetary cycloid gear with high scientific and technological content, Crane cycloid motor It is still moving from emerging to mature. At present, the developing international shipbuilding industry is transferring to East Asia, the "Yangtze River Delta" economy is rising rapidly, and the Shanghai International Shipping Center is gradually taking shape. As it is located in the south wing of the "Yangtze River Delta", it is rich in deep-water coastal resources and has favorable conditions for developing shipbuilding industry, Micro cycloid motor It provides a broad stage for the development of Zhejiang shipbuilding industry. In 2002, the ports in Shanghai, Ningbo and Zhoushan achieved a cargo throughput of 458 million tons, of which the container throughput was 10.497 million TEUs, accounting for 29.2% of the major coastal ports in China. The throughput of the three ports is expected to reach more than 6.5 billion tons in 2010. In addition, in recent years, the shipbuilding industry of our province has a good development momentum, and has the ability to build 50000 ton ships, 70000 ton docks, and 300000 ton voyage repairs. It has laid a good foundation for accelerating the development of our province's shipbuilding industry.