ringbolt

Where good natural protection is not available a fixed hanger or ringbolt should replace the piton.

若该处并无良好的天然支点，则应以固定耳片或环形锚取代该岩钉。

5 When a piton is intentionally removed it should be replaced with a fixed hanger or ringbolt.

5为某因素而特意移岩钉时，应以固定耳片或环形锚加以更换。