查询词典 spontaneous emission

The transmission ratio exceeded 95% in near-infrared range, so the LCAS:Tm(superscript 3+) glasses can be used as high transmission optical glasses. The integral emission cross-sections outclassed 10^(-18)cm, the fluorescent ratios were higher and the radiative lifetimes were lenger, to the glasses are possible to be used as new laser function materials. The new strong and broad emissive bands for 400nm to 680nm emerge in the emission spectra of the another glasses samples.

高达95%以上近红外透过率表明，LCAS：Tm(上标 3+)玻璃可作为近红外波段高透过率光学玻璃；远大于10^(-18)cm的积分发射截面、较高的荧光分支比与能形成粒子数反转的荧光寿命表明，LCAS：Tm(上标 3+)玻璃可能成为一种新的激光功能材料。

The greenhouse gas emission were measured from different sources: landfill in northern Taiwan; paddy field, uplands with young soy beans, peanut, chinese cabbage, cabbage, cauliflower, green onion, lettuce, onion and watermelon plants in Chang-hua. A wetland was also studied in the perspective of greenhouse gas emission.

除了量测堆肥场温室气体释放源外，亦选取同为废弃物处理之台湾北部掩埋场进行温室气体排放量测；彰化地区水稻田及毛豆、花生、大白菜、甘蓝菜、花椰菜、葱、莴苣、洋葱及西瓜等植物种植地点，进行温室气体采集；以及湿地温室气体释放源进行量测。

The data of OH experiment, the analysis of remnant carbon contents and sizes distribution of particulate in fly ash, and the concentration variety of mercury in flue gas supervised by an on-line continuous emission monitor were employed to further study the effects of FCDs on mercury emission from coal-fired boiler.

3本研究利用了OH法的分析数据以及对飞灰粒径和残碳量的测试结果，并采用连续在线测汞仪监测不同运行工况下烟气中汞的排放浓度变化趋势，同时结合烟气净化设施的工艺特点，分析FCDs工艺及运行方式对汞排放特性的影响。

A Finite Difference Method based regional fine mesh and Fine-to-Coarse alternateiteration numerical method is firstly used to simulate the field emission characteristicsfor three novel field emission triodes.

采用粗细网格反复回代的区域加密有限差分方法，首次对制备所得的三种结构的三极管进行了数值模拟。

The companies achieve ownership over the right of emission through documentation of their emission rights in tradeable permits.

各公司通过将他们的排放权力写入可交易的许可中而实现其排放权力的所有。

Result When refer to the different tillages, the difference in CH4 emission flux between CTS and RTS was little during the early rice growth, but they were much more than NTS. During the late rice growth the CH4 emission flux of RTS was much more than CTS and NTS.

在秸秆还田情况下，早稻生长季旋耕和翻耕的CH4排放量差异不大，但显著高于免耕；晚稻生长季旋耕CH4排放量显著高于翻耕和免耕；冬闲季节各处理CH4排放量较小，翻耕CH4排放量显著高于旋耕和免耕。

Results of this research display that estimated amount of emission of SPECIATE Data System is higher than FIRE Data System because there are serious omission in the basic data of TEDs 6.0 Data System and Source Classify Code of FIRE Data System is not so completed that major species can't be built up completely and total emission amount are underestimated.

研究结果显示，引用SPECIATE资料库推估排放量均高於FIRE资料库，主因为TEDs6.0资料库中基本资料缺漏严重，另一则为FIRE资料库中污染源分类码建构不甚完整，导致无法完整建置出排放特徵物种，其总排放量亦严重低估。

It was concluded that the emission of air pollutants of organic heat transfer material heater should measure up to Emission Standard of Air Pollutants for Coal-burning Oil-burning Gas-fired Boiler .

有机热载体炉的大气污染排放应满足《锅炉大气污染物排放标准》（ GWPB3-1999）的要求。

Nanostructured ZnO films with grain size of 28～35 nm have been prepared on quartz glass substrates by pulse laser ablation of Zn target in oxygen atmosphere. The structural and optical properties of the films were studied. ZnO thin films with typical c-axis (002) orientation were successfully deposited at a range of 100～250 ℃. The results obtained by X-ray diffraction and photoluminescence measurements show that the strong UV emission centering is about 378～385 nm and deep-level emission centering about 518～558 nm in the room temperature PL spectra of the ZnO films.

利用脉冲激光沉积法在氧气氛中烧蚀锌靶制备了纳米晶氧化锌薄膜，衬底为石英玻璃，晶粒尺寸约为28～35 nm.X射线衍射结果和光致发光光谱的测量表明，当衬底温度在100～250 ℃范围内时，所获得的ZnO薄膜具有c轴的择优取向，所有样品的强紫外发射中心均在378～385 nm范围内，深能级发射中心约518～558 nm，衬底温度为200 ℃时，得到了单一的紫外光发射。

In order to obtain more exact analytical solution to study the output characteristics of double-clad fiber lasers,according to the continuous-wave rate equations of fiber lasers,using typical parameters of double-clad fiber lasers,the contribution of the re-emission effect arising from the interaction between the upper-level atoms and pump light was estimated.Taking into account the predominant part of the re-emission to improve the accuracy of the integration approximated rate equations,the integration of the product of the loss and radiation should be found and explicit analytical expressions for the output of the DCFLs and gradient efficiency of the pump radiation,were deduced,and certain issues of concern were discussed.

为了求得用于研究双包层光纤激光器输出特性的更为精确的解析解，根据稳态速率方程组，针对典型的双包层光纤激光器参量，在估计了上能级粒子再发射项和抽运光产生的影响后，采用保留再发射贡献主导部分的办法以提高可积分近似方程的精确度，明确地提出了要获得光纤激光器输出功率的解析表达式的关键在于求出损耗系数与光场乘积的积分值，简洁地求得了输出功率和抽运光斜线效率的显函数解析表达式，并对其相关问题进行了讨论，以915nm，920nm和975nm的抽运光为例，当输出激光为1090nm时，得出975nm抽运光产生的斜率效率最高并可高达约87%。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。