cull(ed) wood,dunnage,refuse;waste (wood),residue,mill waste是什么意思

用法例句

It was found that the commercial wood, big diameter pit log and slash of Robinia pseudoacacia Linn stand correlated with the average age (A) of the stand in power function, and correlated with the average diameter D and height H of the stand linearly.

刺槐林分经济材、大径坑木、废材随林分平均年龄变化呈幂函数相关，随林分平均直径、林分平均高变化呈直线相关。