keypad
A simple input device comprising a set of keys or buttons mounted on a keyboard or control
panel associated with a computer, telephone, microwave oven, or other device or on a remote control device.
See also keyboard.
科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。