卡西欧FX-991CN X中文版函数科学计算器

评测依据

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• intros：{"brand_intro":"卡西欧（CASIO）创立于1946年日本东京，是全球知名的电子计算器、手表及电子乐器制造商。其计算器产品以高精度、耐用性和创新功能著称，尤其在函数科学计算器领域占据全球领先地位。卡西欧始终坚持\"创造与贡献\"的理念，产品广泛应用于教育、工程及科研场景，在中国市场拥有极高的品牌忠诚度与口碑。","product_intro":"FX-991CN X是卡西欧专为中国教育市场打造的中文版函数科学计算器，支持微积分、矩阵、向量、复数、方程求解等高级运算。配备高清液晶显示屏与自然书写显示，可直观输入分数、根式等表达式。内置498种计算功能，满足从高中到大学理工科全阶段需求。机身轻薄便携，采用太阳能+纽扣电池双电源设计，续航持久。","key_specs":["显示方式：自然书写显示（中文菜单）","功能数量：498种计算功能","电源：太阳能+纽扣电池双电源","适用考试：全国高中数学联赛、大学理工科考试","尺寸：约165×85×18mm","重量：约100g"]}
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