词汇	umpolung
释义	umpolung 英ʌmpɒ'lʌŋ美ʌmpɒ'lʌŋn.极反转¹⁰⁰
随便看	number of death number of decimal number of decimal place number of decimal places number of decks Number of Dedicated Control Channels number of dees number of defect Number of defective cells tolerated number of defectives Number of Defectives Control Chart number of defects Number of Defects Control Chart number of defects per unit number of degree number of degree-day of heating period number of degree of freedom number of degrees of freedom number of degrees of freefom number of degress of freedom number of delay Number of delivery Number of device pins and number of instruments number of diameter changing number of diametral pitch thread