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
narrow-crown Poplar Aigeiros 11 窄冠杨黑
narrow crown black-cathay poplar 窄冠黑青杨
Narrow Crown Pneumatic Finish Staple 窄冠气动完成主食
“Taper” describes how narrow the top of the crown is compared to the bottom.
用“锥形”这个词可以概括出帽顶与底部相比有多窄。
Here's a hat that has no taper. Notice how the crown doesn't narrow as it gets to the top.
这是一个从上到下由窄变宽的帽子。注意看，它是怎样从下往上越来越窄的。
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。
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