In 2006, the scroll wheel was replaced with a trackball on the front of the device.
2006年滚轮被一个置于手机正面的轨迹球取代.
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This system can serve as a natural and convenient user input device , replacing mouse and trackball.
进一步的实验证明,基于视觉的交互系统是一种自然舒适,符合人体感官的用户界面.
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A trackball has the ball on top and you move it with your finger.
还有其他一些类似鼠标的设备能代替鼠标的工作.
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Adjust how much your pointer accelerates as you move your mouse or trackball faster.
调整指针在您加快移动鼠标或滚球时加速多少.
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Fixed auto brightness, hardware key lights and trackball light notifications.
固定自动亮度, 硬件锁灯和轨迹球通知.
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The trackball products are rare products now , a handful of manufacturer in Taiwan still making it.
说起来还颇神奇,制作这个产品的灵魂人物, 对于轨迹球很有独到的见解.
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A mouse takes much more room than a trackball.
鼠标要比轨迹球占地方的多.
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Move your mouse or trackball in the straightest line possible.
尽可能在最直的线上移动您的鼠标或轨迹球.
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