The security of the building is mainly provided by a numerical keypad lock system.

本大厦目前的安全保障主要由一套数字键盘锁系统来提供。

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Num Lock (short for Numeric Lock) Like a light, Num Lock shifts the numeric keypad between calculator-style numeric entry and cursor movement.

键就像灯的开关一样，它将数字小键盘在计算器风格的数字态和光标态间进行转换。

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The lock also offers 100 access codes, which are programmed at the lock keypad without using software.

该锁也能提供100个进入密码，这些密码无需使用软件就能在锁键盘中编程。

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If I could get used to navigating via the numeric keypad with the num-lock key off, I'd be perfectly happy with the new keyboard.

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