“improvement history of livestock and poultry”的概念、定义、翻译、参考文献-科学参考

单词	improvement history of livestock and poultry
释义	improvement history of livestock and poultry Encyclopedia 理学〔近代畜牧兽医技术〕释 improvement history of livestock and poultry畜禽品种改良史中国自古以来对优良畜禽品种的筛选改良史。
随便看	fractional differential fractional differential equation fractional differential integral equation fractional differential-integral equation fractional differential operator fractional differentiation fractional digit fractional dimension fractional distillation fractional divisor fractional drag fractional [electric] charge fractional electric charge fractional equation fractional equipment fractional equivalence fractional exponent fractional expression fractional factorial design fractional-factorial design fractional flow equation fractional Fourier transform fractional frequency fractional function fractional gain error

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。