sliding-wedge roof bolt楔: wedge peg缝: seam锚杆: roofbolt; rockbolt; stock; s ...楔缝式锚杆: slit rod-and-wedge-type bolt; slot-and-wedge bolt楔缝式锚杆支护: slot-and-wedge fastening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:楔缝锚杆,即可在微信中查询翻译