"激光束"是个多义词,它可以指激光(受激辐射光放大),激光束(Perfume演唱的一首歌曲)。
Laser beam is propagated in the long range and diffused by the target in the solid angle n. So the real reflected optical energy is very weak.
激光束经过远距离传输,又经目标漫反射(在立体角π内都反射能量),实际返回的光能很弱。
参考来源 - 应用激光主动成像探测小暗目标的技术研究On the basis of the analytical result, straightness measuring system based on the imaging processing and laser beam are studied primarily.
在此基础上,着重研究了基于图像法的激光束策量系统。
参考来源 - 图像法实现导轨直线度测量系统的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
汽车误以为激光束挡住了它的路,于是减速或改变了方向。
The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.
由于我曾许诺要像关注激光束一样关注经济,我就那样开始了。
Since I had promised to focus on the economy like a laser beam, I began with that.
在几天的测试中,指示器或跟踪器跟踪一个红外光源,并引导激光束击中目标。
During tests over several days, the pointer or tracker tracked an IR source and directed a laser beam at that source.
So this gives you a little bit of an idea of just how many individual photons there are in a laser beam of light. This is a huge number of photons.
这个给你们一点思路关于,一个激光束有多少独立的光子,这是一个巨大的光子数目。
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