短语词组短語knee bolter [木]圓鋸機Vulcan Bolter 火神拋灑者roof bolter 錨杆機bolter flanges 螺栓接郃緣bolter r 篩選機;錨栓沖擊機rock bolter 錨杆沖擊機universal bolter 通用篩bond bolter 除節機Johannes Bolter 鮑爾特 返回 bolter