| 单词 | npn |
| 释义 | NPNabbr.nonprotein nitrogen Words nearby NPNNPA, NPC, NPD, NPK, NPL, NPN, NPO, n.p. or d., NPR, NPT, NPV The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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