| 释义 |
ˈsap-wood
[sap n.1]
= alburnum.
1791E. Darwin Bot. Gard. i. Add. Notes 96 The placental vessels..are transformed from sap-wood..into inert wood. 1815J. Smith Panorama Sci. & Art I. 258 Boards..free from..sap-wood. 1887C. A. Moloney Forestry W. Afr. 353 A deep reddish-brown heartwood and light sap-wood. |