他戴着蓝色手术帽。

He is wearing a blue ___surgical ___cap.

医生穿着手术服。

The doctor is wearing a ___surgical gown.

医生在手术前必须彻底消毒所有手术器械。

Doctors must sterilize all ___surgical instruments before the operation.

这位外科医生的手术操作极其精准，就像用激光切割一样。

The surgeon's movements were ___surgical in precision, like cutting with a laser.