trackball

听听怎么读

英 [?tr?kb?:l]

美 [?tr?k?b?l]

是什么意思

跟踪球；

变形

复数：trackballs

英英释义

trackball[ 'tr?kb?:l ]

n.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"

学习怎么用

权威例句

Hingedly supported integrated trackball and selection device
Fitts' Law as a Research and Design Tool in Human-Computer Interaction
Two-handed virtual manipulation
Measuring the impact of game controllers on player experience in FPS games
Touch-sensing input devices
Carotid plaque, aging, and risk factors. A study of 457 subjects
A Taxonomy of See-Through Tools
A taxonomy of see-through tools: the video
Job demands, muscle activity and musculoskeletal symptoms in relation to work with the computer mouse.
A comparison of input devices in element pointing and dragging tasks

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