Active-fixation screw-in lead的用法和样例：
- Objective To evaluate and generalize the application of intermaxillary fixation screw in the jaw fracture.
- Install the screw in the trim panel depression.
- Should replace flexible or defect screw in time.
- I wish he'd been soldered in lead.
- I've put the screw in the wood as tightly as I can, but it won't stay in, it keeps slipping out.