Double-Negative双重否定
double-negative medium双负媒质
Double-negative metamaterials双负介质
double-negative material双负材料
Double-Negative Med ia双负媒质
double tube negative pressure drainage双管负压引流
double catheters negative pressure drainage双管负压引流
double-negative regulatory T cells双阴性调节T细胞
CD4CD8 double-negative T cellCD4CD8双阴性T细胞
N(名词) a syntactic construction, often considered ungrammatical in standard Modern English, in which two negatives are used where one is needed, as in I wouldn't never have believed it 双重否定