查询词典 spontaneous emission

A new emission peak located at long wavelength (at about 515 nm) appeared in PL spectra of the unsubstituted polymer (PF6P) films annealed in air, and the intensity of the long wavelength emission increased with the increase of annealing temperature or annealing time.

苯环上未取代聚合物PF6P的薄膜在空气中退火后在长波(515 nm)出现一个新的荧光发射峰，随退火温度的升高或退火时间的延长，该长波荧光发射峰的强度逐渐增大，薄膜的紫外吸收峰变宽。

The analyses results show this long wavelength emission peak should be attribued not to the emission from aggregators or excimers in films but to the vibronic transition from S1 excited state to S0 ground state.

在对其采用曲线拟合的基础上，进一步对薄膜样品的带隙下激发谱和选择激发荧光谱进行了分析，从实验上论证了长波段的发射峰来自于激发态S1到基态S0的振转跃迁，排除了薄膜聚集体和激基缔合物发光的可能性。

The neutron emission intensities of spent fuel for different initial enrichment and different burnup and different cooling time were calculated, the power function relationship between burnup and neutron emission intensity was decided and verified after analysis, and the factors that affected the power function relationship were studied.

计算了不同初始富集度、不同燃耗、不同冷却时间的乏燃料的中子发射强度，经分析，证实了燃耗与中子发射强度间存在的幂函数关系，并对影响幂函数关系的各种因素进行了研究。

A great number of dynamometer experiments are carried out to investigate the effects of structure characteristics of the injector, configuration of combustion chamber, design of the bypass valve and fuel injection phasing on the performance, emission, fuel consumption of the engine during light load operating conditions. After a final optimization and other practical considerations, the control MAPs for the two-stroke DISI prototype engine are obtained. The torque performance, fuel consumption and emission economy of the engine is tested and compared with those of the original carbureted engine.

并且通过大量的发动机台架试验，分析了喷油相位和喷油器的结构参数、燃烧室形状、旁通孔的大小等参数对发动机低速低负荷工况下的性能、燃油消耗和排放的影响规律；通过最后的优化和实际的考虑，获得了最终的二冲程直喷发动机样机的控制MAP图，试验研究了其动力性、燃油经济性以及排放性能，还做了该样机和原化油器发动机的动力性能、燃油消耗率和排放性能的比较。

During SCC of type 310 austenitic stainless steel in MgCl〓 solution at 115℃, corrosion process can enhance dislocation emission, multiplication and motion. Stress corrosion microcrack nucleates in the dislocation free zone or at the tip of the crack when the corrosion-enhanced dislocation emission and motion develop to the critical condition.

本文所得主要结论如下： 1.310不锈钢在沸腾MgCl〓溶液中SCC时，腐蚀过程能促进位错的发射、增殖和运动，当其达到临界条件时，SCC微裂纹就会在无位错区中不连续形核或从原裂纹顶端连续形核；由于介质的作用，纳米级微裂纹并不钝化成空洞和缺口，而是解理扩展。

And then to study the both structures' emission characteristic.It was found that the Al-AlN could emit electrons. The two different structures' emission efficiency has prodigious distinction. The first one whose electron emitter film is on the top was much easier to engender the straitens gaps. And it could engender the straitens gaps at larger area than the other one.

经过实验我们发现(1)对于发射层位于电极之上的结构观测到可测量的发射电流(2)当电子发射层位于电极之上，一排电子发射单元的总电阻介于20~150Ω之间时，电形成过程中，给电极间加脉冲电压，在第一个脉冲周期中就能把Al-AlN电子发射薄膜烧断；而对于电子发射层位于电极之下的结构，在电形成过程中，则需要几个脉冲周期之后才能将电子发射薄膜烧断。

Based on international front and hotspot in atmospheric chemistry and aerosol study, considering domestic characteristics of atmospheric pollution, the laboratory has included main research areas below: atmospheric chemical reaction, aerosol chemistry, photochemical pollution, acid deposition chemistry, atmospheric brown cloud, emission characteristics and emission factors of PM and VOCs emitted from various sources, indoor air pollution and its control techniques, health effect of particulate matters, and so on.

研究室的主要研究方向始终瞄准国际大气化学和气溶胶研究和发展的前沿和热点，结合中国大气污染的自身特点，在大气化学反应、气溶胶化学、光化学污染、酸沉降化学、大气棕色云、各种污染源颗粒物和 VOCs 的排放特征和排放因子、室内空气污染及其控制、大气污染的人体健康效应等方面进行实验研究，在上述各方面得出具有国际先进水平的研究成果，建立国内领先和国际先进的学术研究和实验科学体系，确保研究室的学术地位和知名度，与国外相关的研究机构保持同步的发展态势并建立平等的交流机制。

The results indicate that, air flow meter's abnormal performance and oxygen sensor signal bias have great effect on engine emission, the other two sensors' abnormal performance has unobvious effect on emission of the engine with stable operation.

结果表明，空气流量计工作特性变化和氧传感器信号偏移对排放的影响较大，其它两个传感器的非正常技术状况对发动机稳定运转时的排放没有明显影响。

Products Division my range, stable performance, wavelength coverage from 360-980nm, the color that contains ultra-violet, purple, violet, blue, blue-green, green, yellow-green, yellow, amber, orange, red, pink, white, infrared emission series family of products, especially the infrared emission tube (850,940) series at peers take on a leading position, both are from the life, stability, attenuation, transmission power, etc. At both peer leader status, and species, the perspective of complete, one of 850,5 mm (15 , 30 , 45 , 60 , 95 ), 8mm (15 , 30 , 45 ) with the spot at any time.

我司产品品种齐全，性能稳定，波长覆盖从360-980nm，颜色包含紫外光、紫光，紫罗兰，蓝色，蓝绿色，绿色，黄绿色，黄色，琥珀色，橙色，红色，粉红色，白色，红外发射系列等系列产品，尤其是红外发射管（850，940）系列在同行中取于领先地位，无论是从寿命，稳定性，衰减，发射功率等方面在同行中都处于领先地位，而且品种，角度齐全，其中850，5mm（15°、30°、45°、60°、95°），8mm（15°、30°、45°）随时备有现货。

Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole. Therefore the study on the change and trend of gas flow has significant practical value.

钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。

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。