查询词典 emission spectrum

They looked for the emission of certain wavelengths within the radio part of the electromagnetic spectrum.

他们寻查了电磁波普的无线电波段内所释放的特定波长。

The lineshape of the spectrum is determined by the function sinc and the spantaneous emission is elliptically polarized only when γ is very large or observed on axis.

数值分析表明：在平面摆动器中附加适当的轴向磁场，可以提高各次谐波辐射的强度，对于基波和较低次谐波，提高更明显。

At visible wavelengths, the strongest emission line in this pattern is in the red part of the spectrum and is known as "Hydrogen-alpha" or just H-alpha.

在可见光波段，特征谱线中最强的发射线是光谱中红端的部分，就是人们熟知的"氢—α"或"H—α"。

Electron emission and electron energy spectrum.

电子发射和电子能谱。

Solar radio bursts are usually accompanying with solar flares. The complicated radio spectrum detected in solar radio bursts contained a lot of important information on their source region including physical environment and emission mechanism. Especially, because of their morphologic features of short duration, rapid frequency drift, complicated types and so on, the microwave fine structures could bring out rich important information on the source region such as the complicated configuration of magnetic reconnection, the movement of energetic particle, etc.

太阳射电爆发通常发生在太阳耀斑期间，它携带着爆发源区的物理环境以及辐射机制等诸多重要信息，尤其是微波爆发的精细结构，持续时间短、变化快、结构复杂，可以反映重联过程复杂的磁场结构、高能粒子运动等许多特征。

This burst waveform has benefits compared to a continuous wave emission in that the laser peak power can be very high for measuring long distances, yet the average power can be kept low for eye safety. And more, the pre-amplified optical receiver possessing temperature compensation and feedback resistance noise compensation is designed which is based on the noise spectrum density theory of silicon avalanche-photodiode.

同时根据硅雪崩光电二极管噪声谱密度理论，设计了具有温度补偿和反馈电阻噪声补偿的激光测距仪前放接收模块，详细分析了背景光，反向高压和反馈电阻对于Si-APD接收性能的影响。

At the eclipse of 1870, a more complete set of emission lines from the chromosphere was observed;it is still known as the 'flash spectrum' from the way it flashes into view as the Moon completely covers the solar photosphere.

在1870年的一次日蚀中，更多来自色球层的完整的射线被观测到，当月球完全挡住了太阳的光球时其仍被认为是闪烁的射频频谱而被观察到。

The fluorescence signal revealed by this process is specific and exhibited in the near red spectrum region with emission maxima at 595nm, and it could be competitively inhibited by menadione.

萤光分子所释放出来的长波长讯号(595nm)具有独特的识别性质并且靠近红外光之区域范围，而萤光分子的释放会被维他命K所抑制。

On the basis of character of source spectrum component, the characteristics element of emission particulate source has been determined.

在对源成分谱的组成特征进行分析的基础上，确定了颗粒物各种排放源类的特征元素。

The photoluminescence spectrum of the nanosaws showed stronger visible emission band as compared to undoped ZnO powder at room temperature.

纳米锯的光致发光谱表明，在室温下它有比不搀杂的纯氧化锌粉末更强的可见光发射带。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。