短语词组短语grapnel l 探锚grapnel anchor 多爪锚;四爪锚;多爪小锚cable grapnel 捞缆机grapnel tube 钻杆打捞管grapnel rope 小锚索Grapnel Gun 钩爪枪grapnel travelling crane 抓斗行走吊车three pronged grapnel 三齿抓钩 返回 grapnel