“地力分级法”的概念、定义、翻译、参考文献-科学参考

单词	地力分级法
释义	地力分级法 Encyclopedia 农学地力分级法释 evaluation index system for cultivated land fertility地力分级法利用土壤养分测试资料和田间试验结果，将土壤肥力分成若干等级，根据养分丰缺等级确定施肥建议的方法。
随便看	half-tone halftone halftone image halftone original half-trace half-trajectory half-turn half-value discharge time half-value discharging time half value layer half-value layer half-value layer (HVL) half-wave antenna half-wave dipole half-wave filter half wave loss half-wave loss half-wave oscillator half wave plate half-wave plate half wave potential half-wave potential half-wave rectifier half-wave reflection half wave voltage

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。