hopper cooling造句

Cooling of the majority of hit-and-miss engines is by hopper cooling, with water in an open reservoir.
Although Lister were already well known for their small petrol stationary engines, these were heavy cast-iron engines with water hopper cooling and unsuitable for vehicle use.
Although hopper cooling is inefficient, in terms of the amount of heat removed for the size of the water jacket, it does maintain the cylinder temperature at a low temperature.
It's difficult to find hopper cooling in a sentence. 用hopper cooling造句挺难的