光斑

Due to the continuous movement of the laser beam, a local coordinate system centered on the laser beam is used to simplify the analytical calculation.

考虑到激光束的持续移动，采用了坐标原点位于光斑中心的动坐标系来简化方程的求解计算。

The results prove that using the laser power P=1.7Kw, scanning velocity V=4mm/s, spot diameter D=3mm, cladding thickness T=0.6mm, 50%: 50% Ni60:Ni-Cr-Cr_3C_2 as laser cladding process can obtain the laser coating with lubricous tight surface, tiny dilution rate ,fining microstructure and higher micro hardness and fine metallurgical-bonding Interface.

试验结果最终证明，激光熔覆工艺参数对熔覆层的宏观形貌、微观组织及涂层性能有极大的影响，在激光熔覆工艺参数为功率P=7Kw，速度Vs=5mm/S光斑直径D=3mm，厚度T=0.6mm，50%；50%的Ni60；Ni-Cr-Cr_3C_2的条件下，所得到熔覆层表面光滑致密、组织细小均匀、稀释率小、硬度高且与基体实现了良好的冶金结合，证明这种方法是一种在提高热锻模寿命方面有前途的方法。

This may show as luminescent blotches or spots on the body.

这一点是指其身体上的发光斑或发光点。

The internal Aigh-7c light measurer is to ensure the effect of the cure.

八 固化机内设有过热保护装置，控制机身和光斑区的温升。

Methods (1) The device for study was determined by comparing the fluorescent images obtained by laser scanning confocal microscope and CCD fluorescent microscope respectively. The mercury-arc lamp of fluorescent microscope was studied to value its possibility to be used as the irradiation light source. Various image analyzing and processing methods were compared to determine which one was the best to be applied in this study.

(1)实验系统的建立：分别利用激光扫描共聚焦显微镜和CCD荧光显微镜采集ECV 304细胞的DCF荧光图像，并比较两者的成像质量，实验可操作性等技术指标；主要测量输出功率、功率稳定性以及光斑直径这三个指标，考察荧光显微镜的高压汞灯作为本研究中照射光源的可行性；比较并选择合适的荧光图像的分析与处理方法。

Results (1) CCD fluorescent microscope was superior to laser scanning confocal microscope in collecting the fluorescent image of DCF. CCD fluorescent microscope was chosen to be the system applied in this research with the consideration of operation, cost and et al. The mercury-arc lamp of fluorescent microscope was fit for the requirement of our study. The wavelength range of the light output was 460-490 nm and the power density was about 100mW/cm in the condition of our study. Organelle-cell fluorescence intensity ratio analysis was more suitable than other methods.

结果：(1)CCD荧光显微镜采集到的DCF荧光图像的质量优于共聚焦显微镜，同时综合考虑包括采图质量、光照射剂量的可控性、实验成本和操作简便性等诸多因素，最终确定了CCD荧光显微镜作为实验研究的工具；荧光军医进修学院硕士学位论文中文摘要显微镜的汞灯输出功率稳定，光斑均匀，经本实验所选取的光路系统后输出波长范围为460一490nm，功率密度约为1 00 mw/cm；细胞器一细胞荧光强度比值法对于荧光分布位置的确定优于其他方法。

The experiment results indicate that if one or two quadrants are irradiated by laser, the meterage error of faula centroid is reduced.

实验结果表明激光辐照四象限光电探测器中的一个或几个，可造成光电探测器对光斑质心测量的误差。

According to the numerical simulation and experimental results, the difference between the diffraction patterns generated by quasi-monochromatic light and monochromatic light was compared.

并根据仿真和实验结果比较了准单色光和单色光产生的衍射光斑强度分布的差异。

Begin from acute edema, hyperplasy and reparative process accompanied by acute inflammation , subsiding edema, scarification and mussy pigment in turn were found in the photocoagulative spots ; CNV begins to emerge 1w after photocoagulation, and continuely develop during 1w～4w, the growth of CNV displayed the most productive during the time of 1w to 2w, while there is no difference between 3w and 4w, From 4w to 12w, fibrous tissue was mainly seen to increase within CNV membrane.

结果1。氪激光光凝后激光斑从急性水肿开始，依次经历急性炎症、水肿消退、斑痕化和色素化的增生修复过程；1w开始形成CNV，1w～4w随时间迁延CNV持续发展，以1w～2w CNV生长最为旺盛，3w、4w之间差异不明显，4w之后至12w主要表现CNV膜内纤维组织增加。2。

In order to bring some variety you can create a few dark and light spots on the gates with Dodge/Burn Tool.

为了使一些品种则可以创建几个黑暗和光斑的盖茨与道奇/刻录工具。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失