diffusion

詞型變化：

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英文解釋：

名詞 diffusion:

1. (physics) the process of diffusing; the intermingling of molecules in gases and liquids as a result of random thermal agitation
2. the spread of social institutions (and myths and skills) from one society to another
3. the property of being diffused or dispersed
   同義詞：dissemination
4. the act of dispersing or diffusing something
   同義詞：dispersion, dispersal, dissemination

英文造句：

1. Insulation used to prevent heat diffusion, as from a steam pipe.
   絕熱材料用來防止熱量散失的絕熱材料，如從蒸汽輸送管上