a safety harness的用法和样例：
- Although the scaffolder had worn a safety harness during the work, no suitable anchorage whatsoever was provided.
- Sussex police spokesman said Constable Trevor Perks, who was strapped to a safety harness, managed to catch the man by the scruff of his neck as they both tumbled down the cliff side.
- Safety harness shall be used during scaffold erection.
- The fuse acts as a safety device.
- To use a safety belt, especially in an automobile.