narrow crown poplar 窄冠白杨
narrow crown black poplar 窄冠黑杨
Narrow Crown Pneumatic Staple 窄冠气动钉书针
narrow crown black-white poplar 窄冠黑白杨
Black Locust Narrow-crown clone 窄冠刺槐无性系
The fiber morphology and pulping properties of narrow-crown Poplar Aigeiros 11 at different ages were studied.
对不同树龄窄冠杨黑11的纤维形态与制浆性能进行了研究。
Crown width would keep slowly growth for the wide-crown species and the narrow-crown species would keep stable growth after mature age.
宽冠型树种树冠在成熟龄后，仍有缓慢生长，而窄冠型树种则保持稳定。
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