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

• Nitriding and oxidation: diffusion layer and oxidation layer improve soldering resistance, adhesion resistance and crack resistance.
  氮化扩散层和氧化层：可以提高模具耐溶损性、耐过烧性、耐粘着性和耐热裂性。
• In this paper the singular perturbed initial boundary value problem for the diffraction reaction diffusion system is considered.
  本文讨论了一类绕射反应扩散系统的初始边值问题。
• This paper mainly studies the theory of standard competition and diffusion in these industries with network effect.
  本文是关于在具有网络外部性现象的行业中新技术标准的采用和扩散理论的一个全面综述。
• Life started to wastage, the diffusion separate
  人生如梦，流失了，弥散了，分开了
• Some valuable research results are: A theoretical model on diffusion of interstitial atoms in crystal was put forward.
  较为重要的研究成果有：提出在晶体中间隙原子扩散的理论模型；
• 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。
• This paper puts forward a new edge-directed enhancing based anisotropic diffusion model.
  本文提出了一个新的边缘定向增强扩散模型。
• 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。
• 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 invention of printing helped the diffusion of learning.
  印刷术的发明有助于知识的传播。