例句與造句

1. The rationale for such vaccination follows invention of a commercial synthetic antigen vaccine against the tropical cattle tick, " Rhipicephalus microplus ".
2. The announcement of the new synthetic version at a biotechnology conference here prompted a standing ovation for Vicente Verez, head of the University of Havana's Synthetic Antigens Laboratory that developed the vaccine.
3. It's difficult to find synthetic antigens in a sentence. 用synthetic antigens造句挺難的