N-COUNT A slide rule is an instrument that you use for calculating numbers. It looks like a ruler and has a middle part that slides backward and forward. 计算尺; 滑尺
Its own engineers had taken out the slide rules, and they were deeply skeptical of the mission. (Laughter.)
(笑声)该局的工程师们已将计算尺收了起来,他们对这一使命表示十分怀疑。
LIKE slide-rules,steam engines and carbon paper, the telex machine, once ubiquitous andindispensable, has vanished from sight.
就像计算尺、蒸汽机和复写纸,曾经无处不见的、不可或缺的电传机已经从我们的视野里消失了。
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