Synonym: apparitional, ghostlike, ghostly, phantasmal, spiritual. Similar words: spectra, electromagnetic spectrum, spectre, spectrum, spectroscopy, spectroscope, light spectrum, spectroscopic. Meaning: ['spektrəl] 
adj. 1. of or relating to a spectrum 2. resembling or characteristic of a phantom.
adj. 1. of or relating to a spectrum 2. resembling or characteristic of a phantom. 
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271. Using the Burg method can achieve the higher velocity resolution and the higher azimuth resolution than using the conventional spectral estimate.
272. In this thesis, based on LPC analysis, a method for calculating the spectrum converted system unit impulse function is proposed. So the spectral envelope is converted efficiently.
273. This paper studies the geochemical and spectral information on the"silification". "lemonitization". "clayization". and "carbonatization"related to finedesseminated-type gold deposits in Qian Gui area.
274. A humidity automatic control system with a hygrometer as the sensor for spectral instrument room was studied.
275. A frequency spectral analysis is made on the interferential pulse waveform used in fast electrical pulse train interference by using MATLAB.
276. The results of the calculating example show the following facts. For diffuse incidence of the spectral radiation, the undulant curve of the surface lowers the reflecting ability of the fluid layer.
277. Pulmonary stenosis should be detected by combination of two - dimensional echocardiography, color Doppler imaging and spectral Doppler.
278. The spectral vector can be used to retrieval directly, and the spectral angle and spectral information divergence (SID) are (effective) in similarity measure.
279. The product was characterized by 1H-NMR and mass spectral analysis,(http://sentencedict.com) and the results show it is the same as that obtained by the original procedure.
280. An electromagnetic model for multilayer planar structure with single slot was built in spectral domain.
281. Besides, a preliminary study of the bottom classifying of shallow water bathymetry by spectral derivative based on simulation data is carried out in this thesis.
282. Adaptive coded modulation ( ACM ) is an effective way to promote spectral efficiency in wireless channels.
283. This chapter from Mazurken and polonaises and the origins Spectral analysis of the characteristics and specific cases to elaborate Mazurken and polonaise and embodying the spirit of the nation.
284. The power spectral density of gearbox vibration signals is estimated by the periodogram from which original feature sets are derived.
285. Autofluorescence of tissues can be used for spectral diagnosis of tumors.
286. The spectral compressor compresses a pre-selected portion of the high frequency band and maps the compressed high frequency band to a lower band limited frequency range.
287. It was made with observations from Herschel's Photoconductor Array Camera and Spectrometer and the Spectral and Photometric Imaging Receiver instruments.
288. In this paper, a new method combining target transformation factor analysis and spectral library searching (LS) was developed for qualitative analysis of mixture from IR da- ta.
289. In case the spectrum of incident beam is a function of triangular form, we calculated the spectral distribution of transmission through the F-P etalon with a computer.
290. The spectral of a DDS system is dependent on the phase noise of the clock source and the printed circuit board design.
More similar words: spectra, electromagnetic spectrum, spectre, spectrum, spectroscopy, spectroscope, light spectrum, spectroscopic, aspect, respect, suspect, specter, inspect, prospect, pectoral, spectator, respected, spectacle, suspected, suspect of, inspector, respecting, retrospect, respectful, respective, disrespect, perspective, prospectus, prospector, inspection.