Book Numbers are added to the store or deleted by a numerical keyboard.
图书号码可以通过数字键盘加入存储器内，或者删掉。
An input device, sometimes part of a standard typewriter keyboard, consisting of a separate grid of numerical and function keys arranged for efficient data entry.
一种输入设备，有时是指标准打字机键盘的一部分，包括一个单独的用于有效数据输入的数字和功能键网格。
This paper introduces the MSP430 SCM, vision driving of the CH452 numerical code tube and the control chip of keyboard scanning, and designs a kind of keyboard plan.
介绍了MSP430单片机、CH452数码管显示驱动和键盘扫描控制芯片，设计了一种键盘方案。
The invention relates to a mounting structure of a numerical control system keyboard. The structure mainly solves the present complex process and mounting of the numerical control system keyboard.
本发明涉及一种数控系统键盘的安装结构，主要解决目前数控系统键盘的加工、安装复杂的问题。
The invention relates to a mounting structure of a numerical control system keyboard. The structure mainly solves the present complex process and mounting of the numerical control system keyboard.
本发明涉及一种数控系统键盘的安装结构，主要解决目前数控系统键盘的加工、安装复杂的问题。
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