“Double cross”的概念、定义、翻译、参考文献-科学参考

单词	Double cross
释义	Double cross Encyclopedia 农学授粉释 Double cross林木双杂交 4个亲本先配成两个单交杂种，再用两个单交杂种进行杂交。简称双交。
随便看	contrast photometer contrast polyphony contrast rendition contrast resolution contrast reversal contrast test contravalency contravariance contravariant contravariant component contravariant coordinate contravariant density contravariant derivative contravariant functor contravariant Hom functor contravariant index contravariant morphism functor contravariant of a group contravariant of a tensor contravariant order contravariant set system contravariant spinor contravariant tangent bundle contravariant tensor contravariant tensor algebra

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。