A method to determine the electron temperature and density from the time resolved spectra of hydrogen atoms left in a pulsed laser plasma is described.
本文讨论了一种利用残留在激光器中杂质氢原子的时间分辨光谱，来确定脉冲激光等离子体电子温度和电子密度的方法。
The novel Gd-containing sulfide glasses were investigated. Some glass properties including infrared spectra, microhardness, density and the curves of XRD and DSC were tested.
研究了新型含钆硫化物玻璃，测试了玻璃的红外透射光谱、显微硬度、密度等性能以及XRD ，DSC曲线。
Furthermore, the energy density spectrum for electromagnetic wave, Langmuir wave and ion acoustic wave are obtained and used to interpret spectra evolution with time.
研究了电磁波、朗缪尔波与离声波在相互作用中的能量密度谱随时间的演化；
The free volume properties of high impact polystyrene (HIPS)-low density polyethylene (LDPE) blend have been investigated by means of positron annihilation lifetime spectra (PALS).
不同组成的高冲聚苯乙烯（HIPS）和低密度聚乙烯（LDPE）共混物的正电子湮没寿命谱被测量，结果表明HIPS和LDPE是不相溶共混物。
The track spectra of Qinhuandao-Shenyang(QS) passenger railway line and German railways were compared in terms of power spectrum density(PSD), amplitude of time domain samples and dynamic performance.
从轨道谱的功率谱密度、时间样本幅值及对动力学性能影响的角度，对比了秦沈线轨道谱和德国轨道谱。
On the basis of optimized geometries, the charge densities, spin density, bond orders and electronic spectra of above molecule and cation have been calculated.
以优化构型为基础计算其电荷密度、自旋密度、键序和电子光谱。
The analyses for lifetime spectra show that a large number of thermal vacancies are recovered and the bulk electronic density increases during the peak ageing process.
分析表明：峰值时效使热空位大量回复并使基体电子密度提高。
The analyses for lifetime spectra show that a large number of thermal vacancies are recovered and the bulk electronic density increases during the peak ageing process.
分析表明：峰值时效使热空位大量回复并使基体电子密度提高。
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