“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	National Committee of Cultural Relics National Communication Association national competitive intelligence national competitiveness evaluation National Comprehensive Information Platform for Maternal and Child Health national compulsory tree planting National Conference of Bishops of Brazil National Conference on Aging National Conference on Ecological and Environmental Protection(2018) National Conference on Education in 1978 National Conference on Language and Script Work National Conference on Local Finance (1938 and 1939) National Conference on Promotion of Digital Archives & Record Office National Conference on Scientific and Technological Innovation National Conference on Scientific Work(1962) National Conference on the Work of Inner-Party Regulations National Congress of British West Africa National Congress of Constitutional Democracy National Congress of the CPC(1955) National Congress Party National constitution National Continuing Management and Intervention Program for Severe Mental Disorders National Convention on Sport Science of China National Convention Party National Council of Churches in Australia，NCCA

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