卡西欧 fx-991CN X 中文版函数科学计算器

评测依据

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• time_range：{"from":"2026-06-26 00:16:34","to":"2026-06-26 00:16:34"}
• intros：{"brand_intro":"卡西欧（CASIO）创立于1946年，日本知名电子仪器制造商，以计算器、手表、电子琴等产品闻名全球。其科学计算器系列凭借高精度、稳定性和创新功能，长期占据中国教育市场主导地位，是学生和工程师的首选品牌。","product_intro":"fx-991CN X是卡西欧专为中国市场打造的中文版函数计算器，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，菜单全中文显示，操作直观。内置498种计算功能，满足从中学到大学理工科课程需求，是考研和竞赛的经典机型。","key_specs":["显示：192×63点阵液晶屏","功能数：498种计算功能","电源：太阳能+纽扣电池双供电","尺寸：约165×77×13.7mm","重量：约95g","认证：符合中国考试要求"]}
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