单词 | profilograph |
释义 | profilographnoun pro·fil·ograph prōˈfiləˌgraf, -fīl-, -rȧf 1 : an instrument borne on wheels for recording automatically the profile of the land over which it travels 2 : an instrument for measuring smoothness of a surface (as of a metal casting) by amplification of the minute variations from the plane or arc of smoothness |
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