They can move along the surface like this for 15 feet (4.5 meters) or more.

这样它们能在水面前进大约15英尺(4.5米)或者更长距离。

youdao

In addition, a user is able to do precise work with the pointing device since the pointing device is able to move along a curved surface.

此外，由于所述指针设备可以沿着曲面移动，用户可以使用该指针设备完成精确地操作。

youdao

The pointing unit is designed to enable a mouse pointer to move on a monitor screen depending on the extent of sliding of the pointing unit along the curved surface of the support unit.

本指针装置根据其沿曲面支撑装置的曲面进行滑动的程度，可使鼠标指针于显示屏上进行移动。

youdao

You can move the handset (and its front-facing camera) up and down as it speeds along any flat surface, responding to commands from someone on the other end of a Skype video chat.

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