单词	Bertrand lens
释义	Bertrand lens noun : an auxiliary removable lens in the tube of a polarizing microscope used to obtain interference figures Word History Etymology probably after Joseph L. F. Bertrand
随便看	four-wheeler four-wing saltbush four-wing saltbushes fourb fourbe fourberie fourble fourble board Fourcault process fourchettes fourchée Fourcroya fourdrinier fourdrinier wire fourdriniers fourer fourest fourfold fourfolder fourfoldest fourgon fourgons Fourier Fourier analysis Fourier series

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。