“exotic weeds”的概念、定义、翻译、参考文献-科学参考

单词	exotic weeds
释义	exotic weeds Encyclopedia 农学〔地理起源分类〕释 exotic weeds外来杂草由人为因素有意或无意被引入到新生态环境，能在其中自然延续种群，并对新生态环境或其中的物种构成一定威胁的草本植物。
随便看	regular tetrahedron group regular topological space regular topology regular torus regular trace regular transformation regular tree group planting regular triangle regular tridecagon regular tube regular type regular undecagon regular union regular unipotent element regular value regular variable regular variation regular variety regular vertex coloring regular wave regular web regular wreath product regulated deficit irrigation regulated deficit irrigation of grassland regulated function

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。