单词	exact differential
释义	exact differential noun : a differential expression of the form X1dx1 + … + Xndxn where the X's are the partial derivatives of a function f(x1,  …  , xn) with respect to x1,  …  , xn respectively Word History First Known Use 1825, in the meaning defined above
随便看	Parseval Parshall parshall flume parshiot parshioth Parsi parsiism parsiisms parsil parsimonies parsimonious parsimoniously parsimoniousness parsimoniousnesses parsimony parsing parsings parsis parsley parsley camphor parsley family parsley fern parsley green parsley haw parsley oil

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。