查询词典 narrow band

In the copolymers of fluorene and DBT, the efficient energy transfer due to exciton trapping on narrow band-gap DBT sites has been observed.

在芴与DBT的共聚物中，观察到了由于激子在低带隙单体DBT位置的捕获而产生的有效的能量转移。

The principle of optical fiber homochromous radiation temperature measurement was described. The mathematical model was created. Aiming at the problem of temperature measurement in bad working environment , quartz optical fiber and narrow band filter were used to design a temperature measurement system in real time based on virtual instrument. Principle and method of the system ,structure of hardware and software were expounded. The methods of data acquisition and data analysis on virtual instruments platformwere explained. Single2chip hardware system and LabVIEW software were adopted to ensure the precision and stability , data storing and long2range display was realized.

介绍了光纤单色辐射式测温原理，建立了测温系统数学模型，针对恶劣环境下的温度测量问题，利用石英光纤束和窄带滤光片，设计了基于虚拟仪器技术的实时测温系统，阐述了系统工作原理和实现方法，以及系统的硬件和软件结构，说明了在虚拟仪器开发平台上进行数据采集与数据分析的实现方法，采用单片机硬件系统和LabVIEW软件系统以保证测量精度和稳定性，并实现了数据的存储和远程显示。

A narrowband interference has a greater power spectral density. Thus it will bring more strong devastation to the DSSS system than a broadband one does.So it is difficult for DSSS system to ensure a high quality of communication by itself when strong interference exists, even communication may be intermitted.

窄带干扰(Narrow-Band Interference，NBI)由于其功率谱密度比宽带干扰高得多，所以它对DSSS系统的破坏性更强，当有强窄带干扰存在时仅靠系统自身的抗干扰能力很难保证系统高质量的通信，甚至可能造成系统通信中断。

Some methods, in which synthesized theoretical seismogram of high frequency is taken as record signal and 20%random noise is superimposed on the seismogram, are used to analyze the theoretical seismogram. The digital experiment shows that in the correlating frequency range, Green's function method can measure precisely interstation phase velocity, but the results obtained by correlation and narrow band-pass filtering correlation methods are more dispersed.

以合成的高频理论地震图作为记录信号，并在理论地震图上叠加了20％的随机噪声，利用这些方法分析理论信号，数字实验表明：在相干频率范围内，格林函数方法能够精确测量台间相速度，而互相关法和窄带通滤波互相关法所得结果较为离散。

To enhance the reliability of narrow band PLC over low-voltage networks, a Power Line Communi- cation routering reconstruction method on basis of irreciprocal clustering algorithm is proposed and thoroughly discussed in the paper.

为提高低压配电网窄带电力线载波通信系统可靠性，提出并讨论一种基于非交叠分簇算法的电力线通信组网及路由重构方法。

Subwavelength gratings with different grating parameter have different diffractive properties, and realization of nonpolarizing narrow-band filtering by reasonably designing the parameter of subwavelength grating is a novel method and approach.

亚波长光栅因光栅参量的不同而具有不同的衍射特性，通过对亚波长光栅参量的合理设计来实现消偏振窄带滤波是一种新的方法与途径。

XRD showed hexagonal wurtzite structure. Room-temperature PL spectra of perfectly overcoated CdSe/ZnS only showed a narrow band edge emission. Emission peak was great red-shifted relative to absorption and the shift increases as the size decreases. The size-dependence of shift could be explained very well in terms of excition fine-structure model and stress at interface owing to lattice mismatch contributes to the shift between CdSe and CdSe/ZnS with the same size.

结果显示表面修饰完善的样品的荧光光谱只有一个窄而强的带边发射；所有样品的荧光峰相对于1S-1S吸收峰有较大的红移，并且移动量随尺寸的减小而增加，利用激子的精细结构模型很好地解释了红移量和尺寸的关系；核／壳结构的样品的吸收峰和荧光峰相对于同尺寸的单量子点也有红移现象，这是由于CdSe和ZnS的晶格失配在界面上产生压力造成的。

To study the clinical effect of the narrow-band ultravioletB radiation and prunus mume tincture on patient with vitiligo.

目的 研究乌梅酊联合窄谱中波紫外线治疗白癜风的临床疗效。

For realizing the seismic traveltime computation under complex topographical conditions, we present a new method based on linear interpolation and narrow band technique.

为了在复杂地表条件下实现地震波走时计算，提出了一种基于线性插值和窄带技术的走时计算新方法。

To meet the needs, a novel low-noise fiber laser with compound cavity structure is designed. The stable single-mode operation is realized by using a transient self-written fiber grating, produced by the effect of saturable absorption within a section of unpumped erbium-doped fiber, as narrow band filter for mode selecting and linewidth squeezing. Through optical path modification, the spectral signal-to-noise ratio is better than 62 dB.

激光器采用复合腔结构，以掺铒光纤作为工作物质，通过在未被抽运的掺铒光纤中形成的瞬态自写入光纤光栅的窄带滤波特性进行选模和压窄线宽，产生稳定的单频激光输出；经过光路改进，激光输出光谱信噪比优于62 dB；利用光电负反馈电路，弛豫振荡峰下降了约25 dB，低频段强度噪声也大为改善，有效地抑制了光源的强度噪声。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。