pocket calculator

基本解釋

My pocket calculator needs a new battery .
我的袖珍計算器需要一個新電池。
One handy example of how classroom practices can change is the replacement of the slide rule by the pocket calculator.
能夠怎樣改革課堂實習的一個簡便的事例是用袖珍計算器代替計算尺。
My father, who was trained in engineering at M. I. T. in the slide-rule era, often lamented the way the pocket calculator, for all its convenience, diminished my generation's math skills.
我的父親，在幻燈片統(tǒng)治時代，他在麻省理工學院接受工程教育，經常感歎由於袖珍計算器帶來的便利性，削弱了我這一代人的數學能力。

The pocket calculator and digital watch were three years old.
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