单词	ultramicrotome
释义	ultramicrotome noun ul·​tra·​mi·​cro·​tome ˌəl-trə-ˈmī-krə-ˌtōm  : a microtome for cutting extremely thin sections for electron microscopy ultramicrotomy ˌəl-trə-mī-ˈkrä-tə-mē  noun Word History First Known Use 1946, in the meaning defined above Medical Definition ultramicrotome noun ul·​tra·​mi·​cro·​tome -ˈmī-krə-ˌtōm  : a microtome for cutting extremely thin sections for electron microscopy
随便看	reposit reposited repositing reposition repositioned repositioning repositions repositories repositors repository reposits repossess repossessed repossesses repossessing repossession repossessions repossessor repossessors repost reposted reposter reposting repostings reposts

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