tree n. 特里〔姓氏〕。 n. 1.樹〔主要指喬木,也可指較大的灌木〕。 ★玫瑰可以稱為 bush, 也可以稱為 tree. 2.木料,木材;木構(gòu)件;〔古語〕絞首臺(tái);〔the tree〕(釘死耶穌的)十字架;鞋楦。 3.樹形(物),世系圖,家系 (=family tree);【數(shù)學(xué)】樹(形);【化學(xué)】樹狀晶體。 a banana tree 香蕉樹。 an axle-tree 心棒,軸料。 a boot-tree 靴楦[型]。 a saddle-tree 鞍架。 at the top of the tree 在最高地位。 tree of Buddha 菩提樹。 tree of heaven 臭椿。 tree of knowledge (of good and evil) 【圣經(jīng)】知道善惡的樹,智慧之樹。 tree of life 生命之樹,生命力的源泉【植物;植物學(xué)】金鐘柏。 up a tree 〔口語〕進(jìn)退兩難,不知所措。 vt. 趕(獵獸等)上樹躲避;〔口語〕使處于困境;窮追;把鞋型插入(鞋內(nèi))。
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(chǔ)上,利用樣木資料建立了一個(gè)適合濕地松人工林干形變化規(guī)律的可變參數(shù)削度方程,據(jù)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(shù)表經(jīng)檢驗(yàn)誤差較小,精度較高,可在林業(yè)生產(chǎn)上推廣應(yīng)用。