Because of its excellent partloadefficiency, many compressor unit is used mainly in the occasions for large displacement in high pressure piston compressor applications.
由于其出色的部分负荷效率，多压缩机机组主要应用于的场合为大排量中高压活塞式空压机应用领域。
2
Recent years, the seasonal energy efficiency(SEER)and integrated part-load value(IPLV)are the evaluating methods for refrigeration and heat pump equipment.
季节能效比（SEER）和综合部分负荷值（IPLV）是近年来出现的制冷和热泵装置能源效率评价指标。
3
With the compressor in part, motor load can change speed, with gas and still maintain a high efficiency;