“草场维护和改良机械”的概念、定义、翻译、参考文献-科学参考

单词	草场维护和改良机械
释义	草场维护和改良机械 Encyclopedia 工学畜牧机械释 machinery for grassland improvement and maintenance草场维护和改良机械改良退化的天然草场，更新草场植被和提高牧草产量的机械设备。
随便看	Contrafactum contraflexure contra-flow contragradience contragradient contragradient automorphism contragradient composition contragradient isomorphism contragradient linear transformation contragradient mapping contragradient matrix contragradient module contragradient representation contragradient set contragradient transformation contragredient contragredient automorphism contraharmonic mean contraindicated during pregnancy contraindicated in diet contraindication of Chinese medicinal use contraindication of pattern contralto contranatant contraorbital

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。