1.(船首斜桅的)支撑杆
1.either of two upright timbers supporting the inner end of the bowsprit of a sailing ship, to which mooring cables or ropes are sometimes attached
1.Arch structure is located on the knighthead and between the electronic body and the knighthead.
凸起结构设置于支撑杆上且位于电子装置本体与支撑杆之间。