“economic threshold”的概念、定义、翻译、参考文献-科学参考

单词	economic threshold
释义	economic threshold Encyclopedia 农学经济阈值释 economic threshold; ET经济阈值采用防治措施阻止害虫种群密度增长，以免达到经济损害允许水平的虫口密度。又称防治指标、防治阈限。
随便看	discretely normed ring discretely tunable infrared laser discrete math discrete mathematics discrete maximum principle discrete measure discrete memoryless channel discrete method discrete metric discrete metric space discrete midpoint convexity discrete model discrete motor skill discrete multiplicity discrete multi-tone modulation discrete multi-tone modulation, DMT discreteness discrete norm discrete normal subgroup discrete numbers discrete optical fiber measurement technology discrete optimal control systems discrete optimization discrete optimization problem discrete order

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。