mechanical calculator
/mɪkˈænɪkəl kˈælkjʊlˌeɪɾɚ/
/mɪkˈanɪkəl kˈalkjʊlˌeɪtə/
Mechanical calculator
01
机械计算器, 机械式计算装置
a device that performs arithmetic operations through mechanical means, often using gears, levers, and other physical mechanisms, predating electronic calculators
例子
The accountant used a mechanical calculator from the early 20th century to tally up expenses for the ledger.
会计使用了20世纪初的机械计算器来汇总分类账中的费用。
In the museum exhibit, visitors could try their hand at using a mechanical calculator to add and subtract numbers.
在博物馆展览中，参观者可以尝试使用机械计算器来加减数字。
