a human fetus whose weight is less than 0.5 kilogram when removed or expelled from the mother's body
双语例句
1. The recombinant strain is a strain obtained by deactivating capsular polysaccharide synthesis protein gene and carboxyl uridine phosphate decarboxylase gene in the abortus Brucella strain S19.
2. The recombinant strain is a strain obtained by deactivating capsular polysaccharide synthesis protein gene and carboxyl uridine phosphate decarboxylase gene in the abortus Brucella strain S19.
