大径材 large timber大幼树large sapling大圆材 high pole; large pole
+sapling grows
1 . 苗生长
the methods of vegetative reproduction simple to control , so being broadly applied in nursery stock production . moreover , the vegetative sapling grows more rapidly than sexual sapling .营养繁殖方法操作简单,因而广泛应用于苗木生产。营养繁殖苗生长远比有性繁殖苗迅速。
+grow saplings
1 . 培育树苗
be surrounded by thick trees 被密林环绕grow saplings 培育树苗large stretches of forests 大片森林