单词 sap-wood 释义 sap-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...
单词 sapwood 释义 sapwood n [U] soft outer layers of wood 边材, 白木质(木之柔软的外层). 英汉双解词典包含38652条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。 ...