“umber”的概念、定义、翻译、参考文献-科学参考

单词	umber
释义	umber [`ǝm·bǝr] ^MATERIALS A naturally occurring brown siliceous earth, deriving its color from iron oxides and manganese oxide; used as a paint pigment.
随便看	sumac wax sumatra sumbul oil sumi ink sumi reed summability method summable function summary plotter summary punching summary recorder summation check summation convention summation network summation principle summation tone summation wave summer summer black oil summer noon summer savory oil summer solstice summer time summerwood summing amplifier summing network

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。