| 词汇 | adding-machine |
| 释义 | adding machine noun[ C ] uk /ˈæd.ɪŋ məˌʃiːn/ us /ˈæd.ɪŋ məˌʃiːn/ a mechanical or electronic device used to add numbers together: In the 1890s, he invented the first mass-market adding machine in America. Workers operated checkout lanes using battery-operated adding machines. He records everything by hand, with the help of an electronic adding machine and an old typewriter. The letter was accompanied by what appears to be an adding machine slip. Most keyboards also have a numeric keypad with the keys laid out like the keys on a typical adding machine. Measuring, weighing, & counting devices -scopic detector dial dipstick dosimeter fitness tracker gage gamma counter gamma meter gauge gradation indicator manometer micrometer probe smart meter straight edge tracker voltmeter wand |
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