常見例句雙語例句Your guide hand is placed above the belay device friction brake.您的導曏手應放在繩栓摩擦制動裝備上麪。out800.comBelay plates and tubes hold a fall by pulling the device closer to the krab forcing the rope into a 'Z' shape thereby increasing the friction.確保器制止墜落的方式，藉著把確保器拉近鉤環(huán)，迫使繩子彎成Z字形增加摩擦力。Petzl's Gri Gri is the most popular auto-locking belay device in use today, most of its problems are to do with the Gri Gri's misuse rather than its design.Petzl的Gri Gri確保器是今天最多人用的自動確保器，大部分的問題在於処理使用上的錯誤而非設計有問題。 返回 belay device