A method, program storage device and mobile device provide speech disambiguation. An abnormal offset voltage is detected by judging whether the output voltage of an inverting amplifier circuit is lying in the range of normal voltages. A substantially concave shape is formed in a top of each open liner section. The HLA cannot determine target range or resolve left-right ambiguity but can predict Closest-Point-of-Approach events. This light diffraction decreases the contrast ratio of the micromirror. or less; drawing off the pure xylylenediamine from the side draw; evaporatively concentrating the bottom product of the distillation column in an additional evaporation stage to form a condensate; and returning the condensate into the distillation column.