英语词汇“trackball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

trackball

释义

Noun: trackball 'trak`bol

An electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen
"a trackball is essentially an upside-down mouse"

Derived forms: trackballs

Type of: electronic device

Encyclopedia: Trackball

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