“心土层”的概念、定义、翻译、参考文献-科学参考

单词	心土层
释义	心土层 Encyclopedia 农学土壤层次释 middle layer心土层位于表土层与底土层之间的土层。通常指表层以下至50厘米左右深度的土层。厚度20～30厘米。因位于土体中部而得名。
随便看	addition term by term addition theorem addition theorem of probability distribution addition tricolor additive additive algebra additive and subtractive hybrid machine tool additive arithmetic function additive bases additive basis additive boundary additive category additive cellular automaton additive channel additive character additive class additive class of sets additive coboundary additive color additive color mixing additive color mixture additive colour mixture additive composition additive composition law additive congruence

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。