It is a type of civil work that is built inland waters and usually perpendicular to the coast. They help to cut the strength of the waves on the beach. Spur, dique, barrier, jarillon.
Tajamar : In Germania, field knife.
marina, is a plank cut curved and assembled on the outside of the roda, which is used to cleave the water when the boat go.
Well, ditch or excavated hole in the generally clayey soil to collect water for later herd of 40 animals;Cattle ). Digs with tractors, agricultural and traillas and is a form of inverted truncated Trapeze trunk normalemte.