英语词汇“tracking ball”的读音、翻译、释义、用法及例句-语文网

词汇	tracking ball
释义	tracking ball 轨迹球用来操纵显示幕上游标移动的一种设备，它包含一个可以用手自由推动的球和两个对应於X方向及Y方向的轴角编码器。
随便看	depositary Depositary Institutions Deregulation and Monetary Control Act depositary receipt depositary trust company deposit bank deposit creation deposit currency deposit in currency cocktails deposit insurance deposition deposit money depositor depositories of foreign securities depository depository bank depository institutions depository intermediaries dissolution dissolution of corporation dissolvable dissolve dissolvent dissolving dissonance dissonant

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