The slide rule function is used primarily in aviator watches.

该计算尺功能主要用于飞行员手表。

One handy example is the replacement of the slide rule by the pocket calculator.

一个简便的事例是用袖珍计算器代替计算尺。

Veteran readers may remember these, but, like my slide rule, they have become almost obsolete.

有经验的读者可能记得这些，但是，像我的计算尺，它们已经变得几乎过时了。

The principle, structure and usage of the pan-shaped slide rule of Gray code are introduced.

介绍作者研制的盘式格雷码计算尺的原理、结构和使用方法。

William Oughtred, English mathematician who invented the slide rule in 1622, died at Albury in Surrey.

1622年发明计算尺的英国数学家威廉·奥特雷德在萨里郡奥尔伯里逝世。