单词	annular auger
释义	annular auger noun : a ring-shaped boring tool that cuts a circular channel leaving the center intact Word History First Known Use 1863, in the meaning defined above
随便看	archaeologists archaeology archaeomagnetic archaeomagnetism archaeometric archaeometries archaeometrists archaeometry Archaeopithecus Archaeopteris Archaeopterygiformes archaeopteryx archaeopteryxes archaeornes archaeornis archaeornises archaeornisses Archaeornithes archaeornitheses archaeornithesses archaeozoic archaeozoics archaeozoologists archaeus archai

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