“fir”的概念、定义、翻译、参考文献-科学参考

单词	fir
释义	fir Encyclopedia 农学〔用材树种〕释 fir冷杉松科（Pinaceae）冷杉属（Abies）植物的统称。常绿乔木，树干端直，树形优美，是高山地带的顶级群落组成树种，也是很好的园林绿化观赏树种。理学裸子植物释 fir冷杉属裸子植物松目松科的一属。 Mathematics ＞代数学＞环论＞释义 free ideal ring (fir)自由理想环 fir = free ideal ring自由理想环
随便看	back plane backplane back pressure heat and power cogeneration back pressure test for gas well back pressure turbine backproject backprojection operator back propagation back-propagation back propagation algorithm back-propagation algorithm back propagation network back propagation neural network back-propagation neural network back propagation of errors network back propagation，BP back reaction backreflection back reflective material backrope backsaw backscatter backscatter cross-section back scattered electron backscattered electron

科学参考收录了854744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。