1. grapnel的解释

1. 探锚：graphite resistance 石墨电阻 | grapnel 探锚 | grappling 探线

2. 四爪锚：grapnel anchor 四爪锚 | grapnel 四爪锚 | grapple dredger 抓斗式挖泥船

3. 小锚：graphotype 白垩版 | grapnel 小锚 | grapple with 扭打

4. 小艇锚：grapnel 多爪小锚(三爪、四爪、五爪等 | grapnel 小艇锚 | grapple bucket 抓斗

1. a light anchor for small boats

    Synonym: grapnel anchor

2. a tool consisting of several hooks for grasping and holding
    often thrown with a rope

    Synonym: grapplegrapplergrappling hookgrappling iron