适应极地气候的管道施工吊管机柴油机冷起动性能的CNG加热系统研究
괄응겁지기후적관도시공조관궤시유궤랭기동성능적CNG가열계통연구
The Study on the CNG Heating System Adapting Cold Start Performance of Diesel Engine Driving Pipelayer Serving at Polar Climate
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