species n. 〔sing., pl.〕 1.种类;【生物学】(物)种。 2.【逻辑学】种。 3.【原子能】核素。 4.【法律】形式。 5.【宗教】圣餐物。 a species of folly 一种愚蠢行为。 the four species 【数学】四则,加减乘除。 The Origin of S- 《物种起源》〔Darwin 的名著〕。 the [our] species 人类。
tree n. 特里〔姓氏〕。 n. 1.树〔主要指乔木,也可指较大的灌木〕。 ★玫瑰可以称为 bush, 也可以称为 tree. 2.木料,木材;木构件;〔古语〕绞首台;〔the tree〕(钉死耶稣的)十字架;鞋楦。 3.树形(物),世系图,家系 (=family tree);【数学】树(形);【化学】树状晶体。 a banana tree 香蕉树。 an axle-tree 心棒,轴料。 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 菩提树。 tree of heaven 臭椿。 tree of knowledge (of good and evil) 【圣经】知道善恶的树,智慧之树。 tree of life 生命之树,生命力的源泉【植物;植物学】金钟柏。 up a tree 〔口语〕进退两难,不知所措。 vt. 赶(猎兽等)上树躲避;〔口语〕使处于困境;穷追;把鞋型插入(鞋内)。
For the majority of tree species this method appears to be very well suited . 对于大多数树种来说,这个方法看来都是适合的。
Only a few forest tree species can develop viable seed from unpollinated ovules . 只有少数林木可以从未授粉的胚珠发育成有活力的种子。
Many forest tree species have multiple archegonia which, after fertilization produce a number of proembryos . 许多林木树种都有颈卵器,受精以后便产生许多原胚。
Where forests are concerned, the difficulty is increased by the longevity and competitive capacity of dominant tree species . 只要哪里涉及森林,就由于优势树种的长命和竞争力而增加困难。
A study on landscape tree species planning in kunming 昆明市园林树种规划研究
Transplantation technique of some big landscaping tree species 几种绿化树种大树移栽技术
More than 390 native tree species have been recorded locally 本地共录得逾390种本土树木。
Reviews of research work on sap flow process in tree species sapwood 树木边材液流传输研究述评
The foundation of geographic information system about exotic tree species 外来树种信息系统的构建