Carrier later switched from piston power to the centrifugal chiller, which allowed much larger Spaces to be cooled.
Carrier后来把活塞动力改为离心式制冷机，可以冷却更大空间。
The aircraft is powered by a 360hp air-cooled, four-stroke, petrol (gasoline) piston engine.
飞机由一台360马力风冷、四冲程汽油活塞发动机提供动力。
Piston needs to be cooled efficiently with increase of thermal loading of diesel engines.
由于柴油机热负荷不断提高，必须要对活塞进行有效冷却。
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