收缩的

• retractile
• contractive
• systolic
• necked

例句

1. 肌动描记器记录肌肉收缩的器械
   An instrument for recording muscular contractions.
2. 收缩收缩的行为或被缩小（短）的状态
   The act of contracting or the state of being contracted.
3. 收缩物收缩的事物，尤指肌肉
   Something, especially a muscle, that contracts.