diffusion

英 [dɪˈfjuːʒən]

美 [dɪˈfjuʒən]

n.  扩散，传播；漫射

复数：diffusions　

TOEFL医学

BNC.12694 / COCA.11051

柯林斯词典

The verb is pronounced /dɪ'fjuːz/. The adjective is pronounced /dɪ'fjuːs/. 动词读作 /dɪ'fjuːz/。形容词读作/dɪ'fjuːs/。


• V-ERG (使）（知识、消息等)传播；（使）散布；（使）普及
  If something such as knowledge or informationis diffused, or if itdiffusessomewhere, it is made known over a wide area or to a lot of people.
  1. Over time, the technology is diffused and adopted by other countries.
     久而久之，这项技术传播到了其他国家并得到利用。
  2. ...an attempt to diffuse new ideas...
     传播新思想的尝试
  3. As agriculture developed, agricultural ideas diffused across Europe.
     随着农业的发展，农业知识开始在欧洲普及。
• VERB 宣泄，舒缓(尤指不良情绪)
  Todiffusea feeling, especially an undesirable one, means to cause it to weaken and lose its power to affect people.
  1. The arrival of letters from the Pope did nothing to diffuse the tension.
     教皇的来信并没有缓解紧张的气氛。
• VERB 使(光)漫射;使发散
  If somethingdiffuseslight, it causes the light to spread weakly in different directions.
  1. Diffusing a light also reduces its power...
     使灯光漫射也会降低其强度。
  2. The sun slid behind trees, its last light diffused by wintry branches.
     太阳躲到了树后，余晖透过冬日的树枝洒落下来。
• V-ERG （使）扩散;（使）弥漫;（使）渗透
  Todiffuseorbe diffusedthrough something means to move and spread through it.
  1. It allows nicotine to diffuse slowly and steadily into the bloodstream...
     它能使尼古丁平稳缓慢地渗透到血液里。
  2. It created a glowing centre of warmth that quickly diffused through my limbs...
     它形成了一个温暖的热源，热量迅速扩散至我的四肢。
  3. The moisture present in all foods absorbs the flavour of the smoke and eventually diffuses that flavour into its interior.
     所有食物中都存在的水分会吸收烟味，并最终将其散播到食物内部。
• ADJ-GRADED 散布的;分散的;弥漫的
  Something that isdiffuseis not directed towards one place or concentrated in one place but spread out over a large area.
  1. ...a diffuse community...
     分散的社群
  2. A cold, diffuse light filtered in through the skylight.
     一道冰冷的光线透过天窗漫射进来。
• ADJ-GRADED 含糊不清的;难以理解的
  If you describe something asdiffuse, you mean that it is vague and difficult to understand or explain.
  1. His writing is so diffuse and obscure that it is difficult to make out what it is he is trying to say.
     他的文章含混晦涩，让人看后不知所云。

英英释义

noun

• the act of dispersing or diffusing something
  1. the dispersion of the troops
  2. the diffusion of knowledge
  Synonym:dispersiondispersaldissemination
• the property of being diffused or dispersed
  Synonym:dissemination
• the spread of social institutions (and myths and skills) from one society to another
• (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration

双语例句

• In this paper, the second initial and boundary value problem of a nonlinear singular diffusion equation is discussed.
  讨论了非线性奇异扩散方程的第二初边值问题，证明了存在唯一的光滑解，且解关于初值是连续依赖的。
• Light reflection, diffusion, deflection and transmission are all phenomenon of matter's attraction, absorption and re-emission.
  光的反射、散射、折射和透射都是物质对光的吸引、吸收和再发射现象。
• The parameters of agar diffusion method for determining natamycin was investigated and controlled in quantification.
  实验对管碟法测定纳他霉素的各项参数进行了研究并量化控制。
• Molecular diffusion also occurs in liquids and solids.
  分子扩散同样也会在液体和固体中发生。
• The sodium penetration takes place in both ways of pore penetration and crystal lattice diffusion.
  钠向阴极炭块中渗透有两个途径：一是通过孔隙渗透，另一个是通过晶格进行扩散。
• A diffusion method for the preparation of ferrous oxalate in a gel system was presented.
  介绍了一种在凝胶体系中用扩散法制备草酸亚铁的结晶方法。
• The emergence of Internet development and diffusion evidence-base medicine has played an important role.
  因特网的出现在循证医学的发展和传播过程中起到了重要的作用。
• And there are error diffusion and accumulation during transformation.
  在转化的过程中，存在误差的传播和积累。
• An ischemic stroke is a dynamic process in which perfusion and diffusion change throughout the evolution of the infarct.
  缺血性脑卒中是一个动态的过程，在这个过程中，灌注和弥散随着梗死的进展而不断改变。
• The effect of water content on diffusion of pesticides under very dry conditions has been investigated.
  人们曾经研究了在十分干燥的情况下水分含量对农药扩散的影响。