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High-contrast capillary depth gauge and watch comprising such a depth gauge
High-contrast capillary depth gauge and watch comprising such a depth gauge
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机译:高对比度毛细管测深仪和包括该测深仪的手表
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摘要
The gauge (1) has a capillary tube of triangular section that is arranged against a background opposite to an observation surface and visible by transparency from the observation surface. A tubular section is filled with water and a reflection surface is visible by reflection from the observation surface. The capillary tube forms an isosceles triangle whose equal angles having an angular value between 48-60[deg] . The reflection surface is arranged opposite on the sides of isosceles triangle. An independent claim is included for watch.
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