The bar codes on the products are read by lasers.
产品上的条形码是用激光读取的。
Professor Orr has developed interesting ways of tagging chemical molecules using existing laboratory lasers.
奥尔教授已经研发出了用现有的实验室激光给化学分子贴标签的有趣方法。
The parts of the enterprise which are scientifically the most exciting are unlikely to be militarily useful. I am thinking here of the development of new kinds of lasers.
这份计划中，从科学角度看最让人兴奋的部分在军事上却可能无用。我指的是新型激光开发。
Pap smears work by detecting abnormal cells that are cancer precursors and that can be destroyed using techniques like lasers.
巴氏涂片可以检测异常细胞，这些细胞是癌症的前兆，可以使用激光等技术来摧毁它们。
Other machines would distinguish problem weeds from crops and eliminate them with shots from high-power lasers or a microdot of pesticide.
其他的机器将有问题的杂草从农作物中区分出来，然后用高能激光照射或农药微粒来消灭它们。
They have not yet come up with the $5 million that EPRI says will be needed to develop a commercial system, by making the lasers yet smaller and cheaper.
他们还没有拿出美国电力科学研究院说需要的500万美元，这笔钱是为了通过制造更小更便宜的激光器来开发一个商业系统。
Scientists built hundreds of lasers.
科学家建造了成百上千个激光器。
The lasers demonstrate very good performances.
这些激光器展示出非常好的性能。
Semiconductor lasers and light-emitting diodes
半导体激光器和发光二极管
The lasers by the runways act a bit like radars.
机场跑道两侧的激光起到一些类似雷达的作用。
How do scientists control brain cells with lasers?
科学家们如何用激光控制脑细胞？
Or perhaps, ultrasound can be used instead of lasers.
或者用超声波代替激光。
LICHTMAN: What do you mean, in the lasers in CD players?
李奇曼：你是什么意思，CD播放机里的激光？
They've used lasers to etch the Yangcheng name on crab shells.
他们用激光把阳澄字样刻在螃蟹壳上。
We have already fabricated and measured many lasers with the design.
我们已经在这种设计下制作并测量了许多激光器。
In all lasers, light is repeatedly reflected within a mirrored cavity.
在所有的激光器中，光都在一个反射腔中重复反射。
Scientists do have a high-tech method for slowing atoms, however: lasers.
但科学家们已经找到了一种高科技方法令原子变慢: 激光.
Using lasers to trigger fusion could prove cheaper than other techniques.
利用激光触发聚变或许比其他方法更合算。
The Boeing laser integrates multiple thin-disk lasers into a single system.
波音公司激光系统集成了多个薄型激光器。
We've reported before about the seriousness of pointing lasers at aircraft.
用激光灯指点飞机的危险性，我们早已知道。
Car engines could soon be fired by lasers instead of spark plugs, researchers say.
研究人员说，汽车发动机很快将由激光器来引燃，从而取代火花塞。
Oil droplets lit by lasers swirl in a wind tunnel around a flowering blade of grass.
风洞中激光照亮的油滴围绕着草叶周围打着转。
Optotools, meanwhile, makes industrial fiber-coupled high-power semiconductor lasers.
Optotools公司同时将生产工业级光纤耦合高能半导体激光器。
LaWS is made up of six industrial-use lasers that simultaneously focus on the target.
该激光武器系统是由6个工业用激光器组成，可以同时对准目标。
Since they were invented 50 years ago, lasers have become extraordinarily commonplace.
激光器是在50年前发明出来的，如今已相当常见。
These pulsed lasers are commonly used to transmit information through fiber optic cables.
脉冲激光器被普遍应用于光纤的信息传输。
Dr Kasparian thinks that more powerful lasers will be able to draw lightning to the ground.
Kasparian博士认为更强的激光可以引起云地闪电。
LICHTMAN: I mean because I think when people think of lasers, they think of heat, not cooling.
李奇曼：我的意思是，我认为，当人们一想到激光，他们就会想到热，而不是制冷。
The particles reflect light from flashing lasers, so they can be tracked using high-speed cameras.
颗粒会反射闪射的激光，这样高速的摄像机就可以跟踪拍摄。
Therefore, the laser allows a reduction in the number of lasers in a spectroscopic analysis system.
由此，光谱分析系统中的激光器数量将得以减少。
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