grapnel
1. grapnel anchor
四爪锚
2. grapnel travel(l)ing crane
抓斗行走吊车
3. a grapnel; a grapple
抓钩
4. grapnel rope
探锚索
5. slider grapnel - type automatic grab- bing beam
浮动块抓钩式自动抓梁
6. automatic grapnel for marine purpose
船用机械锚
7. grapnel traveling crane
锚钩式行走起重机