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 02:59:45","to":"2026-06-26 02:59:45"}
• intros：{"brand_intro":"卡西欧（Casio）创立于1946年，是日本知名的电子仪器与数码产品制造商。其计算器业务自上世纪70年代起便享誉全球，以高精度、耐用性和创新功能著称。卡西欧科学计算器在中国教育市场占据主导地位，是初高中及大学理工科学生的首选品牌，产品线覆盖基础计算到工程图形计算，品质稳定可靠。","product_intro":"FX-991CN X是卡西欧面向中国教育市场推出的旗舰级中文科学计算器，支持自然书写显示，可显示分数、根号、微积分符号。内置498种计算功能，涵盖复数、矩阵、向量、统计、方程求解、微积分等。采用太阳能+纽扣电池双电源供电，续航持久。机身符合中国考试要求，允许带入高考、考研等考场，是理工科学生和工程师的经典工具。","key_specs":{"显示方式":"点阵液晶，自然书写显示","功能数量":"498种计算功能","电源":"太阳能+纽扣电池LR44双电源","适用考试":"高考、考研、注册工程师考试","重量":"约95g","尺寸":"165.5×77×11.1mm"}}
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