1. Mast refers to a tall pole, a long round wooden pole or metal pole, on which sails and flags are hung, and an antenna is installed to support the observation platform on the ship. A lower truss, boom or diagonal truss that usually stands vertically from the keel or middle plate of a ship and can support the transverse truss sail.
2. The mast on the ship has many uses. For example, use it to install signal lights, hang flags and erect telegraph antennas. In addition, it can also support the cargo boom, lifting and unloading goods.