激光笔的英文：
laser pointer

I own a laser camera.
我有一架激光照相机。

A quite important application of lasers is in holography
激光的一个十分重要的用途是用在全息摄影方面。

Designed with a computer. Silenced by a laser. Built by a robot.
电脑设计，激光消音，机器人制造。

A powerful laser and astronomical telescope are used for this measurement
在测量时使用了一台功率强大的激光器和一台天文望远镜。

There is no question that the laser will continue to revolutionize the field of chemistry.
毫无疑问，激光将继续使化学领域发生变革。

pointer qualifier
指示修饰语

Pointer screws.
指针旋转着。

The swing of a pendulum,pointer,needle,etc
钟摆、指针、磁针等的摆动

Interest rates and other pointers in the economic forecast.
利率和经济预测中的其它指数

Pointer is an identifier that indicates the location of an item of data .
指示字(符)是提示某个数据项位置的一种标识符。