得力D82ES双行显示科学计算器

评测依据

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• intros：{"brand_intro":"得力（Deli）创立于1988年，中国最大的办公文具制造商之一，产品覆盖计算器、文具、办公设备等。凭借高性价比和广泛渠道，得力计算器在国内学生市场占有率极高，以\"好用不贵\"著称，是许多中小学和家庭的首选品牌。","product_intro":"D82ES是得力最畅销的学生科学计算器，采用双行显示设计，上方显示表达式，下方显示结果，便于核对。支持基础函数运算、统计、分数计算等240种功能，满足初中至高中数理化需求。机身轻巧，配备滑动保护盖，防摔耐磨。价格不到30元，性价比极高，被家长称为\"学生计算器入门首选\"。","key_specs":["显示类型：双行液晶显示","功能数量：240种计算功能","电源方式：纽扣电池","适用阶段：初中、高中","保护设计：滑动式硬壳保护盖","尺寸：约155×85×15mm"]}
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