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通过对12SGT纯天然气发动机技术参数的分析、计算，选配VTR251国产增压器，经过配机试验表明，VTR251增压器的性能完全满足12SGT纯天然气发动机的要求。其匹配性能优于原配12SGT增压器性能。
Through the analysis and calculation of 12SGT natural gas engine technical parameters, the VTR251 homemade turbocharger is selected. After the machine test, the performance of VTR251 turbocharger fully meets the requirements of 12SGT pure natural gas engine. Its matching performance is better than the original 12SGT supercharger performance.