单词	rotary pump
释义	rotary pump noun : a valveless pump in which the fluid is positively pushed by meshing vanes on parallel revolving shafts and meshing screws into the discharge pipe Word History First Known Use 1799, in the meaning defined above
随便看	alipeds aliphatic aliquando bonus dormitat Homerus aliquant aliquants aliquot aliquot scaling aliquot tone aliquots alis vo alis volat propriis alisander aliseptal alisier alisma Alismaceae alismae Alismales alismaleses alismalesses alismas alismata Alismataceae alismataceaes alismatales

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。