“positive displacement pump”的概念、定义、翻译、参考文献-科学参考

单词	positive displacement pump
释义	positive displacement pump Encyclopedia 工学容积泵释 positive displacement pump容积泵依靠活塞、柱塞、隔膜、齿轮或叶片等工作件在泵体内做往复运动或回转运动，使泵体内若干个工作腔的容积周期性变化，而交替地吸入和排出液体的一种泵。
随便看	tree tree adjoining tree adjoining grammar tree adjoining grammar, TAG tree adjoining language tree age tree algorithm tree altar tree analysis method tree and tabular combined notation tree and tabular combined notation, TTCN tree approximation tree assortment Treebank tree bank treebank tree-based model tree breeding for wood improvement tree breeding procedure tree breeding zoning tree centroid tree class tree code tree-complete tree contraction technique

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