Mechanical calculator
01
機械式計算機, 機械式計算器
a device that performs arithmetic operations through mechanical means, often using gears, levers, and other physical mechanisms, predating electronic calculators
例
The accountant used a mechanical calculator from the early 20th century to tally up expenses for the ledger.
会計士は20世紀初頭の機械式計算機を使って元帳の経費を集計しました。
