- 更多网络例句与加拿大短叶松相关的网络例句 [注：此内容来源于网络，仅供参考]
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The impact of precommercial thinning on tree growth and stem quality in jack pine was examined.The study was based on a PCT trial established in 1966 in New Brunswick,Canada.Three thinning intensities,1.22m×1.22m,1.52m×(1.52m),2.13m×2.13m,and a control stand were studied and a total of 154 sample trees were collected from the trial.
以加拿大新布郎斯威克省自然资源与能源部1966年建立的天然林抚育间伐实验基地为研究对象，从3种疏伐强度(1.22 m×1.22 m，1.52 m×1.52 m，2.13 m×2.13 m)的样地和一块控制地中共采伐了154株树，胸径范围10~24 cm，研究抚育间伐对北美短叶松的生长及材质的影响。
- 更多网络解释与加拿大短叶松相关的网络解释 [注：此内容来源于网络，仅供参考]
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jack pine：加拿大短叶松
jack pine 斑克松 | jack pine 加拿大短叶松 | jack plane 粗刨
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jack pine：斑克松
jack panel 插孔面板 | jack pine 斑克松 | jack pine 加拿大短叶松
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Jack pine (Pinus banksiana Lamb：斑克松,(加拿大短叶松)
Jack ladder 木材提升机 | Jack pine (Pinus banksiana Lamb.) 斑克松,(加拿大短叶松) | Jack serew 千斤顶