| 释义 |
laser pointer
释义
激光笔：一种设备，可以发射高度集中的光束，以突出显示一定距离内的感兴趣的物品。
例句
1·If you do it the other way, it becomes a stylus tip and in another way, it becomes a laser pointer .
如果你以另一种方式转动它，它就变成一支触控笔，再换一种方式转动，它就变成一支激光笔。
2·Since we have my red laser pointer , we will also try with the red laser pointer , which is centered at wavelength of 700 nanometers.
因为我们有我的红色激光笔，我们也会尝试红色激光笔，它的中心波长是 700 纳米。
3·I need my laser pointer .
需要我的激光棒。
同义词
激光教鞭，激光棒；雷射指示器
laser bar
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