1. 外科手术用的
Surgical equipment and clothing is used in surgery.

2. 外科手术的
Surgical treatment involves surgery.

1. performed with great precision

e.g. a surgical air strike

2. relating to or requiring or amenable to treatment by surgery especially as opposed to medicine

e.g. a surgical appendix
a surgical procedure
operative dentistry

Synonym: operative

3. of or relating to or involving or used in surgery

e.g. surgical instruments
surgical intervention