·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper, the moisture content and its distribution of each growth ring in air dried wood specimens have been tested by using X-ray scanning densitometer.
用X射线扫描密度计测量气干材含水率及其每一年轮的水分分布。
youdao
应用推荐
模块上移
模块下移
不移动