Oil adding machine with attached oil meter

附带油量计加油机

Many people imagine that a computer is a very large adding machine.

不少人想像计算机是一个很大的加法机器.

With a set of buttons and a loud bell, the device, sold by National Cash Register (NCR), was little more than a simple adding machine.

全国现金出纳机公司卖给他的这套装置有一组按钮和一个很响的铃铛，也就一个加法机那么简单。