Current label: Cycloidal oil motor
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Network optimization information; Marlin Merson, 1588-1648), in 1615, he defined the track of the wheel at the edge of the wheel as the cycloid, which rolls along the ground without sliding. In 1637, French mathematician Descartes published Geometry, which introduced variables and rectangular coordinates into mathematics and created analytic geometry, which became "the turning point of mathematics"
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Network optimization data: Zhejiang is the province with the longest coast and the most 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 3000