ringbolt

常見例句

Where good natural protection is not available a fixed hanger or ringbolt should replace the piton.
若該處并無良好的天然支點，則應以固定耳片或環(huán)形錨栓取代該巖釘。
5 When a piton is intentionally removed it should be replaced with a fixed hanger or ringbolt.
5為某因素而特意移除巖釘時，應以固定耳片或環(huán)形錨栓加以更換。
5.5 When a piton is intentionally removed it should be replaced with a fixed hanger or ringbolt.
5為某因素而特意移除巖釘時，應以固定耳片或環(huán)形錨栓加以更換。