non-negativity

常见例句

This non sequitur invalidates his argument.
他不根据前提推理因而论证无效。
non negative semidefinite matrix
非负半正定阵
non Negative Matrix Factorization(NMF)
非负矩阵因子
Patience is a sine qua non for a good teacher.
做个优秀教师必不可少的条件是要有耐心。
The diplomat was declared persona non grata.
这位外交家被宣布为不受欢迎的使节。
He is declared personal non grata and forced to leave the country.
他被宣布为不受欢迎的人而被迫离开该国。