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

单词	grassland ecological threshold
释义	grassland ecological threshold Encyclopedia 农学草地生态阈值释 grassland ecological threshold草地生态阈值草地生态系统在不断降低和破坏其自我调节能力的前提下所能忍受的最大限度的外界压力（临界值），主要是指家畜采食、人类活动等对其影响的最大范围。
随便看	preface of the journal Preface of The Plays of William Shakespeare Prefaces and Postscripts on Calligraphy Works and Paintings of the Changxingxing Studio Prefaces and Postscripts on Paintings by Yanzhou Shanren Prefaces and Postscripts on Paintings of Zheng Xie Preface to Analytical Dictionary of Characters preface to Buddhist scripture Preface to Clear Discrimination of Literary Form Preface to Cromwell Preface to Discrimination of Essay Form Preface to Huainanzi Preface to Li Yuan Retreats to Pangu by Shen Du Preface to Mencius Preface to Modern Library Preface to Mr.Liu Haifeng's 80th Birthday Preface to the Annotations of the Mohist Dialectical Chapters Preface to the Book of Documents Preface to the Book of Songs Preface to the Classic of Poetry Preface to the Collection of Inscriptional Writings preface to the first issue Preface to the Japanese Translation of Selected Yuan Zaju Plays Preface to the Orchid Pavilion Collection Preface to the Sixty Quatrains on Calligraphy prefactor

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。