cross-multiplying

auto-clipping apparatus beam-of-light transistor bracket fungus brass-button butylmalonic acid Carex scabrirostris clap-traps foale liquid phase loading Nardīn non-nucleoside reverse transcriptase inhibitors positron theory Potter-Bucky diaphragm soil cement slurry spawning starvation sulphur cycle underclothing viscacha work occupation time zero power experiment