dispersal(dispersal动词)

偶然，，表示突然的，意想不到的，不是经常的。下面就由我为大家带来关于偶然的英语短语集锦，希望大家能有所收获。关于偶然的相关短语偶然变动 accidental fluctuation;偶然重合 chance coincidence;偶然符合 stray coincidence;偶然共栖 synclerobiosis;偶然价值形式 accidental form of value;偶然计数 {物} accidental count;偶然迁移 accidental dispersal;偶然扰动模拟 random excitation simulation;偶然失效 random failure; accidental error;偶然失效期 random failure period;偶然宿主 occasional host;偶然[非经济]收入 occasional income;偶然损耗系数 occasional loss factor;偶然误差 accidental error;偶然噪声脉冲 occasional noise pulse;偶然中断 {自} contingency interrupt关于偶然的相关短句accidental [fortuitous] phenomena;偶然现象accident; a chance event;偶然事件an occasional cause;偶然原因run into an old acquaintance; meet an old friend by chance; come across an old friend;偶然遇见一个老朋友an incidental acquaintance;偶然相识的人The occurrence of such things is by no means fortuitous.出现这种问题绝不是偶然的。I struck upon that antique in a little shop in London.我在伦敦一家小店里偶然发现那件古物。关于偶然的相关例句1. They stumble across a ghost town inhabited by a rascally gold prospector.他们偶然来到一个居住着一位狡诈的淘金者的废墟之城。2. I came to live at the farm by happenstance.我来到该农场住下纯属偶然。3. We ran across some old friends in the village.我们在村里偶然碰见了一些老朋友。4. Their success is the result of a fortuitous combination of circumstances.他们的成功是各种环境因素偶然联系在一起的幸运产物。5. Is it destiny that brings people together, or is it accident?人们的相遇是天意还是偶然?6. I came upon an irresistible item at a yard sale.在一次庭院拍卖会上，我偶然发现了一个忍不住想买的东西。7. Life gets better not by chance, but by change.生活变得美好，不是偶然，而是我们努力改变的结果。8. He came upon the hulking redbrick hospital.他偶然发现了这座红砖砌成的森然高耸的医院。9. We met by chance.我们是偶然相遇的。10. I saw the letter purely by chance.我看见这封信纯属偶然。11. Yesterday he went to London and there fell into company with Peter.昨天它去伦敦并在那儿偶然认识了彼得.12. I bumped against an old friend in town today.我今天在城里偶然碰见了一个老朋友.13. He used to rub up against many famous movie stars.他过去经常偶然碰到许多有名的影星.14. I met with an old friend at a dinner party.我在一次宴会上偶然遇到一位老朋友.15. I struck on that antique in a small shop in Shanghai.这古玩是我在上海的一家小店里偶然碰到的.关于偶然的双语例句我们只是在昨天才与她偶然相遇。We met her only yesterday, as it happens.我们(彼此)相遇纯属偶然。We met (each other) quite by chance.我遇见她完全是偶然的。I met her quite by chance.我偶然跟他闲聊，一起说笑话。He's someone I have an occasional chat and joke with.我们的相遇是很偶然的。Our meeting was quite accidental.他偶然发现了这幅画。He discovered the painting perchance.适合早期战略偶然事件的设计倾向于不适合晚期的偶然事件。Designs that fit early strategic contingencies tend to misfit later ones.而它的发明或发现是偶然的。And its invention or discovery was accidental.偶然寄来的食品包裹使他能够度过饥荒。Occasional food packages enabled him to last out through the famine.

dispersal 英[dɪˈspɜ:sl]美[dɪˈspɜ:rsl]n.分散; 散布; 消散; 驱散[例句]The police ordered the dispersal of the crowds gathered round the building. 警方命令聚集在建筑物四周的人群散开。

植物的英语及参考句子植物的英文：botanicalplantvegetation参考例句：Diseased plants害病的植物plant pathologist植物病理学家dispersal(plant)传播(植物)The essence of plants植物之宝Sweet basil罗勒(植物)Rough gentian龙胆(植物)An organism that is pathogenic to a plant.植物病原体使植物致病的有机体The smallest unit of plant structure.植物结构单位植物结构的最小单位Flowers are reproduction parts of a plant.花是植物的生殖器官。volunteer cereals自生谷类植物botanical是什么意思：n. 植物性药材adj. 植物学的'The area is of great botanical interest.该地区很有植物学研究价值。Herbalists dominated the sixteenth century botanical world本草学家在十六世纪曾统治了整个植物界。Dominion Arboretum and Botanic Garden, Central Experimental Farm 渥太华中央试验农场自治领树木园和植物园plant是什么意思：n. 植物；工厂；机器设备v. 栽种；播种；布置；插入A bur of this plant.这种植物的刺果They are planted for hedges.它们种起来当作篱笆。This is a precocious plant.这是一株“早熟”的植物。vegetation是什么意思：n. 植物，植被；呆板单调的生活That part of the garden was designed for vegetables.花园的那一部分计划用来种菜。The vegetables have begun to decay. 那些蔬菜已开始腐烂。Fat is found in vegetable oil.脂肪在植物油中有很多。 ;

dispersal 英 [dɪ'spɜːsl]美 [dɪ'spɝsl]n. 分散；传播；散布；疏散；消失[网络短语]dispersal 散布,分散的,疏散wind dispersal 风播,风力传播,风散播animal dispersal 动物传播,动物扩散 希望帮到你望采纳谢谢加油

扩散快慢的影响因素：分子形态、浓度差、温度、粒子质量。扩散速度在气体中最大，液体中其次，固体中最小；浓度差越大、温度越高、参与的粒子质量越小，扩散速度也越大。扩散过程，是分子挣脱彼此间分子引力的过程，这个过程，分子需要能量来转化为动能，也就需要从外界吸收热量。扩散可以分类为很多不同种类的扩散，其需要和状态大体不相同。有些扩散需要介质，而有些则需要能量。因此不能将不同种类的扩散一概而论。有生物学扩散、化学扩散、物理学扩散，等等。扩散（dispersal），生物个体或其传布体（如孢子、种子）向其他地域传布的过程。又称散布。扩展资料：扩散的积极意义：各种生物都能通过不同的扩散方式扩大栖居范围和分布区域；扩散还促进生物群落的演替，增加物种的多样性；大范围的扩散结合地理隔离是物种分化的重要条件；新的环境意味着不同的自然选择机制，可改变种群的基因频率，因此扩散是促进生物进化的重要因素。参考资料来源：百度百科——扩散
扩散的快慢影响因素： 温度,分子大小, 浓度,压强