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Technical-scientific calculator for physical quantities
Technical-scientific calculator for physical quantities
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机译:物理量的技术科学计算器
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摘要
A standard unprogrammable pocket calculator has a display window divided into a size window (A) and a unit window (B) on the grounds of ease of production. The keyboard consists of four rows with six keys each (C to F) and four rows with five keys (G to H).
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