overshot grab抓钩打捞筒
circulating overshot可循环泥浆的打捞筒
releasing overshot倒扣捞筒
overshot duct[印刷] 凹印墨斗
overshot wheel上射水轮;上射式水轮
overshot seal打捞;筒密封
maximum overshot最大超越量
overshot t打捞筒
ADJ（形容词） having or designating an upper jaw that projects beyond the lower jaw, esp when considered as an abnormality 上颚突出于下颚的