释义 |
sap·wood AHD[săpʹw‹d'] D.J.[ˈsæpˌwʊd]K.K.[ˈsæpˌwʊd]n.(名词)- Newly formed outer wood that lies just inside the cambium of a tree trunk and is usually lighter in color and more active in water conduction than the heartwood.边材:树木的树干形成层内的新生木质,通常色泽较浅,传导水分比树心部更为活跃
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