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;〔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))。
Bounds on the spectral radius of a type of tree graphs 一類樹圖譜半徑的界
Especially , the adjacent tree graph and line graph are both included as special cases of our generalization 特別,鄰接樹圖和線圖是我們推廣的特殊情況。
Introduced in this paper is the forest graph of a connected graph which is a generalization of the tree graph 摘要本文中引進了連通圖的森林圖,它是樹圖的推廣。
( 2 ) basic graph of quasi - fuzzy graph matriod : basic graph is extending tree graph , and it is an important tool by which matroid is studied 2 )準(zhǔn)模糊圖擬陣的基圖:基圖是樹圖概念的推廣,是研究擬陣的重要工具。
Nowadays , concerning the relaxed game chromatic number of tree , out - erplanar and partial k - tree graph have been studied by many researchers home and abroad , this paper studies further the relaxed game chromatic number of trees 如今,關(guān)于樹,外平面圖及偏k -樹的松弛競賽染色已引起眾多學(xué)者的研究,本文主要研究森林的松弛競賽色數(shù)。