查询词典 laser light

Barium nitrate crystal was grown by the aqua-solution cooling method with the size of 48 mm×10 mm×10 mm.When the pump laser energy is 65 mJ,the output energy of first Stokes laser(563 nm) and that of second Stokes laser(599 nm) were measured as 21 mJ and 16 mJ respectively.

在泵浦源达到65 mJ时，获得21 mJ一阶斯托克斯光，输出波长为563 nm，以及16 mJ的二阶斯托克斯光，输出波长为599 nm，受激拉曼散射SRS最大的整体转换效率(包含一阶、二阶斯托克斯光之和)为56.3%。

In the high accuracy diffraction measurement of laser for a tiny wire,polarization direction of laser,laser beam property,and deviation of the beam center from the wire center have an effect on the measuring result.

在丝径的激光高精度衍射测量中，激光的偏振方向、光束的几何属性和光束中心对衍射体对称中心的偏离都会影响测量的结果。

It is found that the output mirror transmissivity of the two cavities keep a certain relation when the beam radii of pump laser, 1064 nm laser and 946 nm laser in the Nd: YAG crystal are well matched.

结果表明，当Nd：YAG晶体中抽运光，1064，946 nm激光的光束半径达到合理匹配时，两个子腔的输出镜透过率之间有确定的关系。

A compact super-radiant optically pumped D2O gas Terahertz laser was developed, it consisted of pumping source, laser cavity, measurement and vacuum system, and the length of laser cavity could be changed in the range of 80-150cm.

实验中使用了范围在80-150cm的可变长度的THz激光工作腔，实验得到了波长为385μm(对应频率约0.78THz)，脉冲宽度为100ns，峰值功率百瓦量级的THz激光脉冲信号输出。4。

A compact super-radiant optically pumped D2O gas Terahertz laser was developed, it consisted of pumping source, laser cavity, measurement and vacuum system, and the length of laser cavity could be changed in the range of 80-150cm.

实验研制了一种紧凑型工作腔长可变的超辐射光泵重水气体THz激光器系统，激光器系统由泵浦源TEA-CO2激光器、D2O气体分子THz激光工作腔、测量系统以及真空系统组成。

In this paper the experimental results of laser multiphoton ionization of background gases (mostly oil-vapor) in the vacuum chamber for laser produced plasma study are presented by using high power laser irradiation.

本文报道了在高功率密度激光辐照下，激光等离子体研究用的真空室中背景气体(主要是真空系统中的油蒸气)的多光子电离的实验研究结果。

Materials and Methods: From January 2005 to December 2006, patients diagnosed with keloid were selected to receive six doses of pulsed dye laser therapy. Clinical assessments were evaluated before and 1 month after the laser therapy. Keloid tissue samples were also collected before and 1 month after laser therapy. Laboratory analysis included immunohistochemical staining of TGF-β and phosphorylated Smad2, and real-time PCR of Smad2 mRNA.

材料与方法：在西元2005年至2006年间，10个有keloid的病人在签署同意书之后，接受6次染料雷射的治疗，在雷射治疗前以及之后一个月，接受临床表现的评估和部分keloid组织切除，执行TGF-β和Smad2蛋白的免疫染色分析，和Smad2的mRNA定量分析。

Section 1 discusses the advantages of medical film printer and USB, and put forward one elementary design scheme of the system. The principle of laser printer and the holistic design scheme of system are presented detailedly in Section 2, while Section 3 expounds the technology of USB. Section 4 discusses design scheme of transfer system of the laser printer - includes the development of USB device and CPLD. The test of holistic laser printer and effect picture of medical image are presented in Section5. In the end, a review of this system and some bugs are put forwards at present.

本文主要分为六个部分，第一部分讨论了医用胶片打印机和USB总线技术的特点和发展趋势，并提出了系统的初步设计方案和研究意义；第二部分描述了医用激光胶片打印机的背景、工作原理和系统的各个组成部分；第三部分描述了通用串行总线2.0版(USB2.0)的通信原理；第四部分详细介绍了打印机数据传输系统的设计——包括USB设备的开发和CPLD的硬件和软件设计，并对这个传输系统的性能进行了分析；第五部分介绍了整个打印机的测试结果和实际打印医学影像的效果图；最后对本文做出总结并提出了不足之处和参考价值。

If the content of SiH〓 kept constant, the laser energy value of threshold that decomposed SiH〓 increased linearly at first, but when the gas flux exceeded 100ml/min, the laser energy value of threshold increased slowly because the coaxial Ar could not"suppress"the reaction flame which leaded to radial dilation of reaction gases and increasing the effective absorption to laser energy.

在反应气体中SiH〓含量不变的情况下，随着反应气体流量的逐渐增加，可以引发硅烷分解的激光能量阈值一开始成线性增加，当流量大于100ml/min以后，由于同轴Ar不能有效的&压住&反应焰，导致反应气体的径向扩张，增加了对激光能量的有效吸收面积，因此激光能量阈值的增加减缓。

Q-switched laser pulses can remove most tattoos effectively, with a low risk of scarring. Cosmetic tattoos, especially those with flesh-colored, red, tan or white inks, should be approached with caution when attempting removal by high-energy short-pulse laser, because of the possibility of laser-induced irreversible darkening.

Q开关雷射可以有效治疗刺青，而且结癖的危险性很低，化妆性刺青特别是肤色、红色、白色，在用高能量短脉冲雷射处理时需特别小心，因为会造成镇可逆的颜色变黑。

No, it's unnecessary. I don't think I have a fever.

不，没有必要，我想我没有发烧。

We live in a culture of instant gratification.

我们生活在即时满足的文化中。