What are the two types of sighting systems for the Type 66 57mm double-barreled naval gun?

The sighting system of the Type 66 57mm double-barreled gun is an electrically regulated system, which controls the semi-automatic sighting and firing of the gun according to the plurals provided by the auto-alignment vector sight. There are two ways of aiming the gun, one is semi-automatic aiming, using semi-automatic aiming instrument to aim according to the plurality of elements provided by the automatic air-to-air vector device; the other is manual aiming, i.e., using the high and low machine, directional machine to aim manually according to the plurality of elements provided by the automatic air-to-air vector device.