fixed belay固定: fixed; regular保护: protect; defend; guard; safe ...栓: bolt; plug适用固定保护栓: tied runner and its uses固定保护绳: fixed rope下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:固定保护栓,即可在微信中查询翻译