common walnut

基本解释

Basic density of Common Jujube and fiber length of English Walnut could be predicted, and the results were significant.
人工經濟林棗木基本密度、核桃木材纖維長度可以通過生長輪年齡來預測，且預測傚果顯著。
On the other hand, the walnut oil is relatively unstable compared to other common plant oils, which can be ascribed to its high content of PUFA.
由於核桃油脂中的不飽和脂肪酸含量高，與其它油脂相比，核桃油脂極不穩定。
The density and strength of English Walnut, Gingko, Camphor Tree Camphor Wood and Rubber Tree were medium, and the density and strength of Common Jujube and Chinese Chestnut were high.
核桃、橡膠、樟樹和銀杏的密度和力學強度較大，板慄和棗樹木材的密度和力學強度很大；

It's most common in hard maple, but also occurs in birch, ash and, in rare cases, black walnut.
NPR: Excerpt: 'A Splintered History Of Wood'