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关 键 词：Protractor
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发布时间：2009-06-03
Protractor Triangles Protractor Triangle with Handle This triangle is inscribed with contrast enhancing colors making it easier to use. Using two 45° triangles provides an easy method of plotting and performing chart work. With its protractor scales, the triangle is easily aligned in any direction with a chart meridian. Direction is maintained as one triangle is slid along the other to the desired position. Durable, clear vinylite. Short sides 7-1/2", .08" thick, 名称： 航海三角板 规格： 234mm 种类： 航海器具 IMPA： 371008 详细信息： 采用北京精雕生产的CNC雕刻机公差小于0.008mm,品质达到世界一流。特点： 外观精美，永不磨损且经久耐用！材料采用进口亚克力板加工，板厚3mm，透过度好且结实耐用。刻度采用雕刻技术。进口油墨上色。永不磨损。
