1、One handy example is the replacement of the slide rule by the pocket calculator.
一個簡便的事例是用袖珍計算器代替計算尺。

2、The slide rule function is used primarily in aviator watches.
該計算尺功能主要用于飛行員手表。

3、The principle, structure and usage of the pan-shaped slide rule of Gray code are introduced.
介紹作者研制的盤式格雷碼計算尺的原理、結(jié)構(gòu)和使用方法。

slide rule翻譯