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“七五”国家科技攻关项目“25YSPB型双端面配油轴向柱塞泵”于1990年11月通过部级鉴定。 25YSPB型双端面配油轴向柱塞泵是在
“Seventh Five-Year” national scientific and technological projects “25YSPB double-sided with axial piston pump piston” in November 1990 through ministerial identification. 25YSPB double-headed axial piston pump is equipped with