- 释义：
- n. 扩散，传播
- 例句：
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The invention of printing helped the diffusion of learning.
印刷术的发明有助于知识的传播.
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This phenomenon , peculiar to the two - dimensional wave motion, is sometimes called diffusion.
二维波所特有的这种现象, 有时叫做弥散现象.
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This regime is termed mass transport or diffusion limited.
这种方式被称作质量输送或扩散控制.
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