double-crystal probe

acoustic surface-wave delay lines Bedrich Smetana cation-anion interference drag twist electronic statistical machine enamel(l)ed hardboard Exmouth Gulf face-down bonding fire-extinguishing apparatus half-burieds hydraulic copy shaper hymeniform Lindesite Liposthey method of experimental design monkey's uncle not let one's left hand know what one's right hand physical holding of the stock principle of causality VHF direction finding