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宽谱
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  wide spectrum
     Differential Measurement of Methane with Wide Spectrum Source based on F-P Filter
     基于F-P滤波器实现宽谱光源的甲烷差分检测
短句来源
     The Du-conversion is one that converse the signal from time domain to gate-width domain and uses the wide spectrum density of the signal to show its characteristics.
     杜氏变换是一种将信号从时域到门宽域的变换,用信号的宽谱密度来描述信号的特征。
短句来源
     Design of Optical System of Long Focus & Wide Spectrum Realm To Correct the Secondary Spectrum & Distorion
     长焦宽谱校正二级光谱畸变光学系统设计
短句来源
     A converter of ultra wide spectrum bipolar pulse with a parallel connected short circuit transmission line is designed. Its operating principle and the analysis of wave propagation are described in this paper.
     研制了一个带并联短路支节的超宽谱双极脉冲转换器并给出其工作原理和波过程分析。
短句来源
     The wide spectrum reflects the information of mobility and orientation of the chain segments while the narrow one reflects the information on pore existed.
     宽谱线反映了链段运动、取向的信息,窄谱线反映了微孔生成与消失的信息。
短句来源
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  wide spectra
     Thetotal uncertainties(99% confidence)are 2.26% for NE 30cc(wide spectra),3.14% for NE 30cc(narrow spectra)and 3.12% for MCD-100cc,respecti-vely.
     对 NE30cc(宽谱)、NE30cc(窄谱)和 MCD-100cc(窄谱)校准的总不确定度(99%置信度)分别为2.26、3.14和3.12%
短句来源
     The moving states of water molecules in the 12-tungsto phosphoric acid hydrate have been investigated by ESR with Cu(II) as a paramagnetic probe and 1H-NMR of wide spectra. The results show that mobility of hydrated water molecules is not only dependent on the temperature, but also related to the amount of water molecules which exist in 12-tungsto phosphoric acid hydrate.
     本文使用以Cu(Ⅱ)为顺磁探针的ESR以及宽谱线~1H-NMR等磁共振方法,研究了12-钨磷酸水合物中水分子的运动状态,结果表明水合水的活动性不仅取决于温度,而且还与12-钨磷酸水合物中的含水量有关。
短句来源
     During the process of stratiformis precipitation,the raindrop spectra in the warm sector evolves from a wide spectra double-peak pattern to a narrow spectra single-peak one,while the raindrop spectra in the cold sector changes from a wide spectra single-peak pattern to a narrow spectra single-peak one.
     在层状云降水过程中,暖区雨滴谱型由宽谱双峰型演变为窄谱单峰型,冷区雨滴谱型由宽谱单峰型演变为窄谱单峰型。
短句来源
  width spectra
     The Width Spectra at Rectangular Pulse Sequences and Analysis of Digital Control Systems
     矩形脉冲序列的宽谱与数字控制系统的分析
短句来源
     The Width Spectra of Rectangular Pulse Sequences and Analysis of Digital Control System
     矩形脉冲序列的宽谱与数字控制系统的分析
短句来源
     In this paper, the Du Transform and Du Integral are discussed in detail, and the Du Transform pairs for typical control inputs are expressed and their width spectra are plotted.
     本文对门函数响应法所得出的杜氏变换与杜氏积分子以论证。 在信号分析方面,通过杜氏变换引申出信号宽谱密度的新概念,并据此求出典型控制输入信号的杜氏变换对。
短句来源
     In signal analysis the Du transform is used to convert signals from the time domain into the gate width domain, thus the characters of signals can usually be represented by their width spectra.
     杜氏变换是一种将信号从时域到门宽域的变换,用信号的宽谱密度来描述信号的特征。
短句来源
  “宽谱”译为未确定词的双语例句
     The fluorescence spectrum is within a range from 310nm to 370nm.
     荧光峰是310nm至370nm范围的宽谱峰;
短句来源
     The fluorescence spectra is within a range from 360nm to 510nm. Its peak wavelength is about 453nm.
     荧光峰是360nm至510nm范围的宽谱峰,荧光峰值波长在453nm左右;
短句来源
     The fluorescence spectrum is within a ranging from 306 nm to 345 nm. Its peak wavelength is about 317 nm.
     乙醚的荧光峰是波长306 nm至345 nm范围的宽谱峰,峰值波长在317 nm左右.
短句来源
     The mass spectrometry of the photo-induced reaction of the complex Mg+-S2(CH3)2 exhibits the existence of the products Mg+ and Mg+SCH3 throughout the whole wavelength range. The photodissociation spectrum consists of three broad peaks corresponding to the atomic transition of Mg+(32P←32S).
     复合物光诱导产物的质谱揭示,存在着非反应猝灭产物Mg+和反应产物Mg+SCH3.复合物的光解离光谱由三个对应于离子Mg+(32P←32S)跃迁的宽谱峰构成.
短句来源
     Objective:To observe and to analyze the clinical efficacy of 311 nm narrow band UVB(NB-UVB)and 280~320 nm broad band UVB(BB-UVB)phototherapy in chronic plaque psoriasis.
     目的:观察窄谱(311nm)中波紫外线(NB-UVB)与宽谱(280~320nm)中波紫外线(BB-UVB)治疗慢性斑块状银屑病的临床疗效。
短句来源
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  wide spectrum
This strong interest is driven by a wide spectrum of promising applications in many areas such as virtual reality, e-learning, entertainment, etc.
      
Cytotoxins are positively charged polypeptides that constitute about 60% of all proteins in cobra venom; they have a wide spectrum of biological activities.
      
The analysis revealed a wide spectrum of mental disorders in schizophrenics and their relatives but not in the control group.
      
Examples of using dynamic adsorption preconcentration for the determination of a wide spectrum of substances were given.
      
A wide spectrum of characteristic times is inherent in unimolecular chain termination, and the relaxation function is described by the Kohlraush' stretched exponential law.
      
更多          
  wide spectra
Knowledge of the characteristics of compound drug-produced stimuli may aid interpretation of the discriminative effects of single drugs with wide spectra of action.
      
Nevertheless, some parasitic species still successfully attack wide spectra of hosts.
      
This mirror can withstand chirped pulse laser beam's with high fluence (>amp;gt;1?J/cm2) and wide spectra (153?nm FWHM) in practice.
      
We investigate the generation mechanisms for ultra-wide spectra in nonlinear optical fibers.
      
Stations were in, or adjacent to the plume of the Mississippi River, thereby providing wide spectra of phytoplankton and suspended riverine particulate concentrations.
      
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When bursts occur in the active region of objects, they will excite on the one hand stronger plasma turbulences and change the atmospheric structures of burst region and on the other hand high-frequency electromagnetic waves produced by plasmons, resulting from Compton process, will be scattered by strong plasma turbulences, and lead to distortion of X-ray spectra of objects. In this paper, according to the practical values of spectral index γ of particle (fe∝ E-γ), the effects of turbulent plasma scattering...

When bursts occur in the active region of objects, they will excite on the one hand stronger plasma turbulences and change the atmospheric structures of burst region and on the other hand high-frequency electromagnetic waves produced by plasmons, resulting from Compton process, will be scattered by strong plasma turbulences, and lead to distortion of X-ray spectra of objects. In this paper, according to the practical values of spectral index γ of particle (fe∝ E-γ), the effects of turbulent plasma scattering on Compton process l + e→t + e' (l--Langmuir wave turbulence, t--high-frequency electromagnetic waves, e--relativistic electrons) are discussed andwe have obtained the various δ values (F ∝6 v-δ) being consistent with the observations and we have made a guess of atmospheric structures of burst region.It is known that if hard X-rays are generated by median-relativistic or near-rela-tivistic particles through the synchrotron, Compton mechanisms and the plasma mechanism, it may be shown then that the connection between the spectral index γ of high-energy electrons and the index 6 follows the equation δ=1/2(γ -1). The cosmic ray electrons have a power-law spectrum with the index γr=2.7-3.2, and the high-energy electrons for solar flares in general have the same power-law distribution with most of γ=2.0-3.0, thus δ=0.5-1.0. However, the most of observational d values of the cosmic X-ray sources and solar flares are apparently larger than these values (see fig. 1). Therefore, using the usual Compton (or synchrotron) mechanism, it is difficult to interpret this characteristic of the spectra. Figure 1 shows the distribution of δ' values with the number of cosmic soures in two energy ranges.The transfer equation of high-frequency electromagnetic radiation through tur-bulent plasma scattering may be obtained by diffusion equation [see equation (7)], where σ⊥ is the scattering coefficient of Langmuir wave turbulence, vw is the damping rate of the electromagnetic wave in that process, δw is the spectral emission coefficient, Jw is the mean radiation intensity, and Iw is the radiation intensity. For the case of γ=3, ε*/mec2 =1, we approximatively obtain the spectral radiation flux on the 'surface' of source [see equation (23)], where quantities R0 and M are given in equations (17a) and (22a) respectively.Results of investigation indicate that in the active region of objects, the role of plasma turbulence scattering indeed appreciably distorts the characteristics of highr frequency radiation spectra. We take for example the effect of such scattering on the Compton process for the conversion of Langmuir turbulent plasmons into high-frequency electromagnetic waves (for instance X-rays), and we get the more wide range of d values within the hounds of pratical y values (2-3), which are in agreement with most of the larger observed d values. Possibly, it is important to take account of the action of plasma turbulence scattering on the transfer of radiations as we investigate the various non-thermal radiation processes generated in the active region of objects.Moreover, from equation (24c) and integral condition α + 2 > 0, we obtain 2δ+4/6(2δ+5)

天体(包括太阳)活动区常常伴随着出现等离子体湍动。这种湍动的散射作用,势必会大大改变该区产生出来的辐射谱的特征及“大气”结构。观测到的宇宙X射线源大多数具有较大的辐射谱指数,用通常的康普顿机制(或同步加速机制)来解释这种谱特征是困难的。但是,考虑到等离子体湍动散射对辐射转移过程的作用,这种困难即可克服,并可在很宽的谱指数范围内与观测谱相拟合。本文具体研究了等离子体湍动散射对康普顿过程的作用,得到了甚宽的X射线辐射谱,并从理论上得出了对应活动区的大气结构模型,与经验模型相吻合。这表明,考虑等离子体湍动散射对天体活动区所产生的辐射的作用是很重要的。

The effects of stochastic magnetic field on the wave-driven current are studied. It is shown that in the central region of the plasma the current density and the dissi-pative power density of the waves will decrease, and the efficiency will increase. In the gradient region (outer region), however, the current density and the power density will increase, and the efficiency will decrease. These effects may be important for the tokamaks driven by the waves with high phase velocity and wide resonance width.

本文在准线性理论基础上考虑随机磁场对波驱动电流的影响,计算了随机磁场对波驱动的电流、波的共振耗散功率及波驱动电流的效率的修正。结果表明,在等离子体的中心区和梯度区其效应是不同的。对高相速、宽谱情形,这种效应是重要的。

1. In this paper, the new and efficient broad line Na23-NMR technique was first applied to investigate the existence and growth of nucleation center with faujasite type structure in a highly disperse colloidal system and some interesting results were obtained. This technique supported a possibility to study the nucleation processes of zeolite in a colloidal system.2. The nucleation processes of the so-called "directing-agent" (highly disperse colloidal system with a composition of 16Na2O ·Al2O3· 15SiO3-320H2O)...

1. In this paper, the new and efficient broad line Na23-NMR technique was first applied to investigate the existence and growth of nucleation center with faujasite type structure in a highly disperse colloidal system and some interesting results were obtained. This technique supported a possibility to study the nucleation processes of zeolite in a colloidal system.2. The nucleation processes of the so-called "directing-agent" (highly disperse colloidal system with a composition of 16Na2O ·Al2O3· 15SiO3-320H2O) have been investigated by broad line Na23-NMR, X-ray diffraction, electron diffraction technique. The structure of the colloidal particles in the "directing-agent" system has been verified to be of the faujasite type. It is the nuclei that enable NaY type zeolites to be formed in the starting mixture in which NaP type zeolites should be formed.

本文首次采用固体宽谱Na~(23)核磁共振法与电子衍射技术,研完了八面沸石导向剂胶体粒子的结构与性能,揭示了八面沸石导向剂的导向作用本质。

 
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