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1478                               振     动     工     程     学     报                     第 39 卷

              递向量和法向向量均为矢量,齿轮泵壳体板面贡献量                               Chinese Hydraulics & Pneumatics,2022,46(8):1-10.
              有正有负,板面泵+x、泵+y、泵−x、泵−y、泵−z、泵+z 贡献                 [7]  WOO  S, OPPERWALL  T, VACCA  A, et  al.  Modeling
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