常见例句

The outer, newer, usually somewhat lighter, wood of woody stem; the wood that is actively transporting water; alburnum.
木本茎中新产生的颜色通常较淡的木材,具有输导水分的功能;边材。
Tough and rich flexibility, alburnum is shown weak ivory, duramen by fallow differ to nigger-brown.
坚韧而富有弹性，边材呈淡乳白色，心材由淡棕色到深棕色不等。
The study objects is ninety standard samples, and then make different experiments according to the duramen and alburnum or transverse section, chordal, radial.
本文用90个规格试件为研究对象，严格按照国家标准按心边材以及横切面、弦切面和径切面分组实验。