“natural focus”的概念、定义、翻译、参考文献-科学参考

单词	natural focus
释义	natural focus Encyclopedia 医学自然疫源地释 natural focus自然疫源地在自然疫源性疾病传播循环中，能保证动物传染源的生存、保证病原体在动物体内繁殖、播散、循环的具有特定自然条件的地区，也是自然疫源性疾病病原体在一定条件下向周围播散的范围。
随便看	similarity theorem similarity theory similarity transformation similarity transformation group similarity type similar linear representation similarly situated figures similar mappings similar matrices similar matrix representation similar operators similar ordered set similar permutation similar permutation groups similar permutation representation similar permutations similar polygons similar position similar projective representation similar quadratic form similar quadrature fomulas similar radicals similar region similar relational algebra similar relations

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。