injection machine

例句：

1. 1. The injection machine is used to inject medication into the patient's body.
   注射器机器用于将药物注入病人体内。
2. 2.The doctor uses a syringe machine to administer anesthesia during surgery.
   医生使用注射器机器在手术中给病人施用麻醉。
3. 3.The nurse carefully monitors the patient's vital signs with the help of the injection machine.
   护士在注射器机器的帮助下仔细监测病人的生命体征。