laser

简明释义

英[ˈleɪzə(r)]美[ˈleɪzər]

n. 激光（器）

v. 使用激光器

【名】 （Laser）（德）拉泽（人名）

复 数 l a s e r s

第 三 人 称 单 数 l a s e r s

现 在 分 词 l a s e r i n g

过 去 式 l a s e r e d

过 去 分 词 l a s e r e d

英英释义

单词用法

同义词

反义词

例句

1.The laser at photovoltaic cells mounted on the pelican's underside, charged the chopper's battery, keeping it aloft for 12 hours and 27 minutes.

激光瞄准安装在鹈鹕下面的光伏电池，给直升机的电池充电，使它在空中飞行了12小时27分钟。

2.To stop the laser itself being struck, it would not be pointed straight at the clouds.

为了阻止激光本身被击中，它不会直接指向云层。

3.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。

4.The department is blazing a trail in the field of laser surgery.

这个部门正在为激光外科学领域开辟一条新路。

5.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。

6.The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.

汽车误以为激光束挡住了它的路，于是减速或改变了方向。

7.Their eyesight can be corrected in just a few minutes by the use of a laser.

他们的视力用激光只要几分钟就可矫正。

8.The laser is no nifty portable: it's a monster that takes up a whole room.

激光并不小巧便携：它是可以占据整个房间的庞然大物。

9.They are developing a new laser technology for cutting materials more efficiently.

他们正在开发一种新的激光技术，以更高效地切割材料。

10.The doctor used a laser to remove the tattoo from my arm.

医生使用激光将我手臂上的纹身去除。

11.The laser printer produces high-quality images and text.

这台激光打印机能打印出高质量的图像和文字。

12.The laser pointer made it easy to highlight important information during the presentation.

这个激光指示器使得在演示中突出重要信息变得简单。

13.She wore special glasses to protect her eyes from the laser during the eye surgery.

她戴上特殊眼镜以保护眼睛免受手术中激光的伤害。

作文

The invention of the laser (激光) has revolutionized many fields, including medicine, communication, and manufacturing. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term 'laser' is actually an acronym for 'Light Amplification by Stimulated Emission of Radiation'. This technology has allowed for precision and efficiency in various applications, making it one of the most significant advancements in modern science.In medicine, lasers (激光) are used in a variety of treatments, from eye surgery to skin rejuvenation. One of the most well-known uses of lasers is in LASIK eye surgery, where a laser is used to reshape the cornea, allowing patients to achieve better vision without glasses or contact lenses. This procedure has helped millions of people regain their sight and improve their quality of life. Additionally, lasers are employed in dermatology for procedures such as tattoo removal, scar treatment, and hair removal. The precision of lasers minimizes damage to surrounding tissues, making these treatments safer and more effective.In the field of communication, lasers (激光) play a crucial role in fiber optic technology. Fiber optic cables use lasers to transmit data over long distances at incredible speeds. This technology has enabled high-speed internet connections and improved telecommunications systems worldwide. The ability of lasers to carry large amounts of information through light pulses has transformed how we communicate, paving the way for the digital age.Manufacturing is another area where lasers (激光) have made a significant impact. They are used for cutting, welding, and engraving materials with high precision. For instance, in the automotive industry, lasers are employed to cut metal components with extreme accuracy, resulting in better-fitting parts and reduced waste. This not only enhances the quality of products but also contributes to more sustainable manufacturing practices.Moreover, lasers (激光) have found applications in scientific research. They are used in experiments that require precise measurements and control, such as spectroscopy and holography. The ability to manipulate light at such a fine scale has opened up new avenues for exploration in physics and chemistry.Despite their many advantages, the use of lasers (激光) also comes with challenges. Safety is a primary concern, as lasers can cause serious injuries if not handled properly. Protective eyewear is essential in environments where lasers are used, and strict regulations are in place to ensure safe practices.In conclusion, the development of the laser (激光) has had a profound effect on numerous industries and aspects of everyday life. From enhancing medical procedures to revolutionizing communication and manufacturing, lasers have proven to be invaluable tools in the modern world. As technology continues to advance, it is likely that we will see even more innovative uses for lasers, further solidifying their importance in our lives.