“犁底层”的概念、定义、翻译、参考文献-科学参考

单词	犁底层
释义	犁底层 Encyclopedia 农学土壤层次释 plowpan犁底层位于耕作层（Ap1）以下较为紧实的土层。耕作表层（Ap）的一个亚层次。用符号Ap2表示。
随便看	underpressure underquenching under-relaxation underrelaxation underrelaxation factor underrelaxation method underscore underscreened Kondo effect undersea cable undersea delta undersea farm undersea feature names undersea mining technology undersea plantation undersea ship/underwater craft undersea space station undershoot undershooting undersize undersocialized undersonic frequency underspeed understandability understandable understanding

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。