sound tracksound transmission coeffient acoustic transmission coeffocoent acoustic transmittivitysound velocitysound vibrationsound wavesoundingsounding balloonsourcesource absorptionsource controlled drawingsource currentsource encodingsource followersource impedancesource languagesource programsource resistancesource routingsource voltage matrixsouth magnetic polesouth polespacespace attenuationspace chargespace charge controlled tubespace charge debunchingspace charge densityspace charge effectspace charge gridspace charge regionspace charge wavespace currentspace devision multiple accessspace diversity receptionspace division switchspace environmentspace factorspace patternspace permeabilityspace probespace quadraturespace shuttlespace telemetryspace trackspace vectorspace wavespacecraftspacingspade plugspan
