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dif·fract 英dɪˈfrækt美dɪˈfræktAHDdĭ-frăktʹ 高COCA¹²⁸⁹³²BNC¹⁷³⁹⁹⁵⁺²Economist⁵³⁵⁸¹⁺¹ 基本英英词源记法近义反义派生词例句 v.使分散²⁵;使衍射⁷⁵形容词diffractive副词diffractively名词diffractiveness过去分词diffracted现在分词diffracting三单diffracts Verb: undergo diffraction;laser light diffracts electrons dis-, 分开,散开。-fract, 破碎,词源同break, fraction. 即光线散开,衍射。钱博士dif=dis,离开+fract断裂,破碎→使光束破碎散开⇒使光束衍射 词根frag-断裂,中断,破碎来自拉丁语,过去分词形式为fract-。它和日耳曼单词break断裂、中断、破碎最终都源自原始印欧语词根*bhreg-断裂,中断,破碎,b-f相通,k-g相通。方振宇词汇奥秘dif=dis=apart,分离+fract打破→使光束散开→衍射 比较记忆diffractiveadj.衍射的衍生词diffract+ion表名词,动作或状态→diffractionn.衍射,绕射dif=dis,离开+fract断裂,破碎→使光束破碎散开⇒使光束衍射。词根记忆dif分开+fract=打碎分开=分解近义词 bend弯曲curve曲线spread传播divert转移diffuse扩散deflect使偏斜 Pdiffractionn.衍射Pdiffractivea.衍射的Pdiffractometry衍射学Pdiffractometer衍射表绕射表 The possibility of carrying out small angle scattering with a common diffract apparatus has been discussed. 讨论了使用普通衍射仪进行小角散射的可能性。 chemyq The robotic crystallization process made plenty of crystals, but they did not diffract very well. 机器人晶体创造出许许多多个晶体,不过它们的衍射现象并不明显。 yeeyan They did this in Bell Laboratories, and they found that, in fact, the electrons did diffract. 他们在贝尔实验室完成了这项工作,他们发现实际上,电子确实发生了衍射。163 Why is it that we're never observing this, for example, why is it the table doesn't diffract as we bring it through the door? 那么为什么我们,从来观察不到它呢,举个例子,搬动一个桌子穿过门,它为什么不衍射呢?163 |