- second-order prefilter
- nELECTRON prefiltro de segundo orden m
English-Spanish technical dictionary. - London, © Routledge. 1997.
English-Spanish technical dictionary. - London, © Routledge. 1997.
Kodaikanal Solar Observatory — Kodaikanal Solar ObservatoryOrganizationIndian Institute of AstrophysicsLocationKodaikanal, IndiaCoordinatescoord|10|13|50|N|77|28|7|E|Altitude 2,343 meters (7,687 ft) Webpage [http://www.iiap.res.in/centres kodai.htm Kodaikanal Observatory]… … Wikipedia