线心

线心都可以看作是Doppler加宽；

The line center of HeI 10830 A line can be taken as Doppler broadening .

以往对K线的研究表明：K1形成于温度极小区（TMR），K1到线心的距离以及K1的强度分别与温度极小区的位置和温度密切相关。

It is now widely accepted that K 1 is formed in the temperature minimum region ( TMR ) and that the distance of the component K 1 from the line center and the intensity of K 1 is well related to the position and temperature of TMR , respectively .

测试结果表明：NiO纳米线为面心立方结构，平均晶粒尺寸为50nm，纳米线直径约90nm，与模板孔径相当；

XRD results indicate that the NiO nanowire has a face-cubic structure and its average crystal size is about 50 nm . According to SEM , the diameter of the NiO nanowires is about 90 nm , equivalent to the diameter of template pores ;

通过半经验半理论的方法对射流z轴方向流速分量w等值线流团涡心运动轨迹方程进行了推导，分别建立了涡心运动轨迹x分量与z分量随时间变化的表达式。

Deduced the track formulas of the jet flow velocity z component w isoline patch vortexes centers movement , and through semi-empirical method , got vortexes centers movement track x component and z component equation with time .

铝包钢线芯线自动对心功能的研究

Research On the Automatic Center Function of the Core of Aluminum Cladding Steel Wire

1979年9月19日3B级耀斑光谱分析：金属线的不对称性和线心位移

Spectral Analysis of the 3B Flare on September 19 , 1979 : Asymmetry and Doppler Shift of the Metal Lines

1974年10月11日太阳耀斑金属线的不对称性和线心位移

Asymmetry and Doppler shift of the metallic lines of the solar flare on 11 October 1974

用高斯函数拟会出谱线的形状，标出线心的波长值，作为自动证认的基础。

The Gauss function is used to fit the spectral lines , marking the central wavelengths , as a basis for automatic identification .

对纳米线进行结构分析表明，本方法制备的纳米线为面心立方结构的βSiC。

The microstructure analysis indicate that the nanowires are β SiC with face centered cubic structure .