English translation for "track-ball"

【计算机】跟踪球〔可用以操纵电脑显示屏上光标移动的位置，该球装在盒内，可用手自由转动〕。

Similar Words：

"track(link)pin" English translation, "track-and-field" English translation, "track-and-guidance laser radar" English translation, "track-and-hold amplifier" English translation, "track-at-once" English translation, "track-ball pointer" English translation, "track-center distance" English translation, "track-circuit signalling" English translation, "track-clearer" English translation, "track-command guidance" English translation