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Plunger matching parts of using dual plunger relatively to big plunger for realizing low oil supply rate by sucking partial fuel oil into big plunger cavity when oil is supplied by big plunger. 专利
申请日期: 2007-01-01, 公开日期: 2007-02-21
作者:  LONG W DONG Q LENG X WEI S DU B ZHO
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