long periodic perturbation

air-line wire Baratvka bond-trading activity car navigation system centrallassite feeder stock incompound infra-red absorption spectroscopy Mikhail Ivanovich Kalinin miltiorrhizae nerve-gas normal oblique drawing optimum track ship routing Prunus simonii rectangular cadmium-nickel battery sand rock sea water scatterance meter serosanguineous sources of evidence variable-speed electric submersible pump