| 释义 |
sapwood['sæpwud]n. 边材【机】 边材, 白材 sapwood sap.wood AHD: [s²p“w‹d”] D.J. [6s#p7w&d]K.K. [6s#p7w&d]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 |