There was no change in his father's position, or in his spectral look . 他父亲的姿势一点没有更动,阴沉的脸色也依然不变。
A convenient classification of stars is based upon the observed sequence of spectral types . 一种实用的恒星分类法是基于测得的光谱类型序列。
A spectral line is emitted when an atom proceeds from an excited state to a lower state . 当原子从一个受激态进入另一个较低的状态时,就发射一条谱线。
In this way, it is possible to pick out two quite different spectral ranges from one and the same seismometer . 这样,一台地震计就能拾取两种截然不同的频谱范围。
In 1896 seeman observed that application of an external magnetic field caused a splitting of atomic spectral lines . 1896年西曼观察到应用外磁场时,使原子光谱线分裂。
Exposure ratios between spectral bands are determined from in situ reflectance spectra of objects in scene . 光谱波段之间的曝光量比值,可以根据景物中目标的就地测定的反射光谱确定。
By translations and changes of scale the spectral subspaces associated with all discs can be characterized similarly . 通过平移与尺度改变,伴随着一切圆域的谱子空间都可以类似地给予刻划。
All intensity measurements using photometric units include a spectral bias (spectral response of the human eye) . 运用光度计装量进行辐射强度测量都应包括一个光谱的偏倚(人眼对光谱的敏感度)。
This effect is particularly important for leds since the emitted spectral width is several hundred angstroms . 这种效应对于发光二极管来说是特别重要的,因为发光二极管所发射的光谱带宽可达几百埃。
The reason for the differences in the spectral purity with regard to longitudinal mode content of the lasers is still not clear . 关于这种激光器中,造成纵模成分的纯度有差别的原因,现在仍不清楚。
of or relating to a spectrum; "spectral colors"; "spectral analysis"
resembling or characteristic of a phantom; "a ghostly face at the window"; "a phantasmal presence in the room"; "spectral emanations"; "spiritual tappings at a seance" 同义词:apparitional, ghostlike, ghostly, phantasmal, spiritual,