例句與造句

1. The high potency of etorphine means that sufficient etorphine can be administered to large wild mammals by projectile syringe ( dart ).
2. In the summer of 1963 and 1964, Flyger traveled to Ross Island in the Antarctic to study the effects of three immobilizing drugs on Weddell seals, using the automatic projectile syringe.
3. It's difficult to find projectile syringe in a sentence. 用projectile syringe造句挺難的