sap wood是什么意思

网络释义

用法例句

But for wood peel’s special shape, it go against machine peeling, so generally the way of peeling is handwork in China.

木材边皮即原木经过锯切以后剩下的边角料,一般形状为长条型、板材较薄,尺寸较小。

Through studies and practices of 20 years on high yield cultivation techniques of black Jew s Ear,3 key questions that are species of fungus ,alburnum volume of wood and technical management in production of black Jew s Ear are summarized.

通过对黑木耳丰产栽培技术 2 0a研究和实践 ,总结黑木耳丰产的 3个关键问题是 :菌种、耳木边材量、技术管理。