加法器和计算器 meaning in English

adding machines and calculating machines-numeric section of ten-key keyboards

Adding machines and calculating machines - numeric section of ten - key keyboards
加法器和计算器十键键盘的数字区
Adding machines and calculating machines - keytop and printed or displayed symbols
加法器和计算器键顶打印或显示符号
Office machines . vocabulary . chapter 3 : adding machines and calculating machines
办公机械.词汇.第3章:加法器和计算器
Office machines . classification and designation of adding machines and calculating machines
办公用机器.加法器和计算器的分类及名称
Office machines . numerical section of limited keyboards for adding machines and calculating machines
办公机械.加法器和计算器专用键盘的数字部份