timber assortment 中文意思是什麼
timber assortment
解釋
木材材種- timber : n 1 原木，木材，木料。2 （可作木材的）樹木；森林；〈美國〉森林地，林場。3 橫木，棟木；【造船】船...
- assortment : n. 1. 分類，搭配。2. 種類，花色品種；一套[全套]物品。
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The variable parameter taper equation, which was suitable to pin us elliottii plantation form changing law, was built with the sample wood datas on the basis of the research of about form shape in the tree mensuration, one - dimensional volume table, two - dimensional volume table, one - dimensional timber - produced rate table for timber assortment, and two - dimensional timber - produced rate table for timber assortment were complied based on the above
摘要在樹干形狀研究的基礎上，利用樣木資料建立了一個適合濕地松人工林干形變化規律的可變參數削度方程，據以編制了一元材積表、二元材積表、一元材種出材率表和二元材種出材率表，這些數表經檢驗誤差較小，精度較高，可在林業生產上推廣應用。
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