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- Bolman has studied regional variation in Douglas fir seed yields. 鲍尔曼曾研究过道格拉斯冷杉种子产量地区间的差异。
- Any of several similar or related trees, such as the Douglas fir. 枞木类似或相关树木中的任意一种，例如黄杉
- Species (Lymantria dispar) of tussock moth, a serious pest of trees. 鳞翅目毒蛾科昆虫。
- Tussock moth of looper of main comfortable Yu Yang, dance and poplar fan boat moth sends an area badly with how. 主要适于杨尺蠖、舞毒蛾和杨扇舟蛾严重和多发区。
- Douglas fir of coniferous tree and Beech of broadleaf tree is selected as the experiment materials. 选择针叶材花旗松和阔叶材山毛榉作为实验材料；
- The most common construction woods are Douglas fir, hemlock, spruce, pine, and some cedar. 最常用的木料是道格拉斯冷杉，铁杉，云杉，松木以及其他一些杉木。
- Not just any tree, but Douglas fir, the emperor of the forest, a species that grows 200 feet tall and blankets much of the Pacific Northwest. 当然不是随随便便任何树的胚胎，而是森林之王花旗松的胚胎，一种可以长到200英尺高，覆盖太平洋西北边大部分地区的物种。
- A small white and brown tussock moth (Euproctis phaeorrhoea) whose caterpillars defoliate shade trees and produce a poison capable of causing a skin rash on contact. 棕尾毒蛾：一种棕白相间的毒蛾（棕尾毒蛾），其幼虫可使树叶脱落，皮肤一接触它所产生的毒素会使皮肤起疹子
- The most common construction woods are Douglas fir, hemlock, spruce, pine, and some cedar . 最常用的木料是道格拉斯冷杉，铁杉，云杉，松木以及其他一些杉木。
- In addition, there are forestry guides about the Taiwan cryptomeria, the Taiwan Douglas fir, and the Formosa pine. 还有台湾杉、黄杉、二叶松等植物的导览解说。
- A small white and brown tussock moth(Euproctis phaeorrhoea) whose caterpillars defoliate shade trees and produce a poison capable of causing a skin rash on contact. 棕尾毒蛾：一种棕白相间的毒蛾（棕尾毒蛾），其幼虫可使树叶脱落，皮肤一接触它所产生的毒素会使皮肤起疹子
- The Fremont climber had leaned a 25-foot-tall Douglas fir trunk against the cliff to shinny up. 弗里蒙特的登山者靠在一个25英尺高的道格拉斯冷杉树干上背对着悬崖峭壁往上爬。
- The wood species included yellow cedar, red cedar, western hemlock, douglas fir, white oak, maple and Fokien cypress. 试材包括美桧、侧柏、铁杉、花旗松、美洲白橡（栎木）、枫木及越南桧木等七种使用量日增之进口材。
- We examined winter temperature gradients across old growth Douglas fir forest edges and compared these to corresponding summer gradients. 自 1 991年 1 0至 1 992年 5月 ,对林缘至原始花旗松林林内的温度 ,进行了连续的实地测量 ,并与相应的夏季温度变化加以比较。
- Douglas fir showed that its four biomass indexes were significantly effected by heat stress treatment but not by water stress treatments. 水分胁迫处理对杉苗的生物量指标影响不大,但热胁迫对杉苗生物量所有三个指标均有显著影响。
- So we measured the white elm tussock moth, an important poplar leaf-eating pest of the Northwest region, studied the energy flows and revenue and expenditure law systematically in its whole life history. 因此，本文选定西北地区杨树主要食叶害虫杨毒蛾为试虫、系统的研究了其整个生活史过程中的能量流动和收支规律，研究结果如下：
- Douglas fir (Pseudotsuga menziesii) is Canada's largest tree and comprises two distinct species: Coast Douglas fir and Interior Douglas fir. 花旗松（黄杉）是加拿大最大的树，包含两大树种：海岸花旗松和内陆花旗松。
- She looked around and padded off across a ravine, toward the edge of the blue spruce and Douglas fir forest that would be her new home. 她环顾了四周一下，便健步越过沟壑，跑向她的新家-一片由蓝色云杉和道格拉斯冷杉组成的丛林。
- Most of the wood is recycled Douglas fir that came from an 80-year-old warehouse or lumber mill that was being torn down nearby. 大部分的木材被回收道格拉斯枞树,来自一个八十岁的仓库或木材,被拆掉了。
- Not just any tree,but Douglas fir,the emperor of the forest,a species that grows 200 feet tall and blankets much of the Pacific Northwest. 当然不是随随便便任何树的胚胎，而是森林之王花旗松的胚胎，一种可以长到200英尺高，覆盖太平洋西北边大部分地区的物种。
