injection mechanism

例句：

1. 1. The new drug uses a unique injection mechanism to deliver its active ingredients directly into the bloodstream.
   这款新药采用了独特的注射机制，直接将活性成分输送到血液中。
2. 2. The surgeon used an injection mechanism to inject the anesthetic solution.
   外科医生使用一种注射机制来注射麻醉溶液。
3. 3. The medical team developed a sophisticated injection mechanism that can administer multiple drugs simultaneously.
   医疗团队开发了一种复杂的注射机制，可以同时施用多种药物。