Han Yu paused, then added: "Fighting a fire on water is different from fighting a fire on land. Even if a burning ship can anchor immediately, it will still sway with the waves. Firefighting boats are smaller in tonnage and don't handle wind and waves as well as larger ships; they will pitch and toss.
Considering that once a large fire occurs, the high temperature and potential explosions mean that our firefighting boats can't get too close, which means it's difficult for us to shoot water directly into the fire.
And this hydraulic lifting device is somewhat like a submarine's periscope, installed at the main mast of the ship, with a secondary gun mounted on top.
When fighting fires, it can be raised, meaning you're effectively raising a high-pressure firefighting water cannon by seven or eight meters in height. Although it's hard to be level with the superstructure of a large ship, it's far more accurate than shooting upwards from below, after all, the angle is different."
