“incidence matrix of a block design”概念、定义、翻译-科学时代

单词	incidence matrix of a block design
释义	数学词汇手册 incidence matrix of a block design 区组设计关联矩阵
随便看	expendable launch vehicle expendable material expendable missile expendable pallet expendable recoverable capsule expendables expended appropriation expenditure expenditure expenditure expenditure expenditure expenditure expenditure expenditure expenditure expenditure expenditure expenditure according to revenue expenditure account expenditure-based deflator expenditure baseline expenditure category expenditure changing policy expenditure commitment

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。