2012新托福考试写作必备词汇（36）
differential discriminator 差分鉴别器，鉴差器differential equation 微分方程
differential gain 微分增益
differential gear 差动齿轮
differential holographic interferometry 差分全息干涉计量术
differential indexing 差动分度法
differential interferenc microscope 差分干频显微镜
differential interferometry 差分干涉计量术
differential laser interferometer 差动激光涉仪
differential method of measurement 差示测量法
differential pendulum cam 差动摆式凸轮
differential photometry 差示光度计量，差示测光
differential planet gear 差动行星齿轮
differential pulse code modulation 微分脉冲编码调制
differential quotient 导数，微商
differential refraction 差示折射外语学习网
differential refractometer 差示析射计
differential screw 差动螺旋
differential transformer 差动变压器
differentiation 微分法
differentiator (1)差示器，差动装置(2)微分器(3)微分电路
diffracted beam 衍射束
diffracted ray 衍射线
diffracted wave 衍线波
diffracted wave vector 衍射波矢
diffracting mask 衍射幕
diffracting power 衍射本领
diffracting ring 衍射光环
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