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- four level laser 四能级激光器
- By using four level rate equation ,the effect of Nd:YVO 4 length and KTP length on the laser output power is calculated for LD pumped green lasers. The optimization results are given. Theoretical analysis agrees quite well with the experimental results. 利用四能级激光系统的速率方程 ,对激光二极管 (LD)纵向泵浦Nd :YVO4 /KTP腔内倍频绿光激光器激活介质和倍频晶体的长度对输出激光功率的影响进行了理论计算 ,给出了参数优化结果 ,分析了它的工作特性 ,得到与理论计算符合较好的实验结果。
- Steen W. M., “Laser Material Processing”, Springer-Verlag London Limited 1998, 2nd 2001. 陈俊良,雷射压印技术之研究,国立成功大学机械工程学系,硕士论文,民国93年.
- The more we struggle to resist, the more hopelessly do we entangle ourselves at the mental or physical or material or emotional level, and sometimes on all four levels simultaneously. 我们越是奋力抗争,我们越是在心理或生理、物质或情感的层面上陷入绝望,有时四种情形会同时出现。
- Above four levels, reads, said, writes, translates the fluency. 在四级水平以上, 读, 说, 写, 翻译流畅。
- Rare earth doped natrium yttrium tungstate (RE:NaY(WO_4)_2, abbreviated RE:NYW) is a kind of solid laser material which is apt to LD pump. 掺稀土双钨酸钇钠晶体(RE:NaY(WO_4)_2,简称RE:NYW)晶体是一种适用于LD泵浦的固体激光工作物质。
- System can be classified into two,three or four levels. 制度可以划分为两个、三个甚至四个层次;
- Yttrium aluminum garnet (Y3Al5O12, YAG) is not only a very important laser material, but also a high-temperature structural material and a fluorescence material. 钇铝石榴石(Y_3Al_5O_12,简称YAG)是一种重要的激光基质材料,同时它还作为高温材料和荧光材料得到了广泛的应用,本文主要讨论了化学共沉法、燃烧法制备YAG的超微粉的工艺,并对YAG超微粉的性能及物相进行了分析;
- Form macro and microlevel ,the forming of the medicine industrial cluster of Tonghua have four level, Themedicine industrial cluster is the main important factor that. 医药产业集群是推动通化经济高速发展的主要动力和重要因素。
- A great Chinese philosopher had defined that there are four levels of ideological realm: Natural realm, Material gain realm, Moral realm and Universe- realm. 一个中国的大哲人把人生分为四种境界,自然境界、功利境界、道德境界和天地境界。
- After analyzed customer loyalty and the relevant concepts and it's essence,pointed the four level of customer loyalty and the value of customer loyalty hase been analyzed also. 通过界定顾客忠诚的概念、内涵,本质,指出了顾客忠诚的四个层次和顾客忠诚的价值。
- The (SBA-15) - (DBC-ASA) composite materials have the potential applied value in laser material field. 复合材料(SBA-15)-(DBC-ASA)在激光材料等领域中具有潜在应用价值。
- The Afghan government plans four levels of security on Election Day. 阿富汗政府计划为大选日布置四层安保力量。
- The top four levels of GSA shredders are all cross-cutting machines. 价更优!
- The mathematics method on the complete function of inte grated broadening optical lineshape for laser material is given.The basic proper ties of the complete lineshape function are analyzed. 本文建立了一种求解激光工作物质综合加宽机制下谱线线型函数统一的数学方法。分析、讨论了激光工作物质在各种加宽机制下光谱线线型函数的基本特性。
- Billy: Cool. If I took all four levels would I get some sort of degree? 比利:酷喔。那如果我四级都上完了,可以拿到什麽学位吗?
- Their future research will focus on the search for sunlight can be efficiently converted to laser material, the most likely to be selected is an addition of chromium and neodymium YAG crystal. 今后他们的研究重点将放在寻找可以高效地将阳光转换为激光的材料方面,目前最有可能被选用的是一种添加了钕和铬的钇铝石榴石晶体。
- low level laser therapy at 630nm 630nm弱激光
- Fat dissolving with low - level laser 低能量激光熔脂
- The related numerical value simulation test was conducted with five factors of the bolt diameter,bolt length,bolts spacing,bolting length and bolt pretension and four level normal test methods. 选择锚杆直径、锚杆长度、锚杆间排距、锚固长度及锚杆预紧力等5个因素、4个水平的正交试验方法进行了相关的数值模拟试验。