非均质物质中，热扩散率不可能用一个简单数字来表达。
In heterogeneous anisotropic materials the thermal diffusivity cannot be described by a single number.
扩展字典文件来识别成百上千的单词将大大降低简单数字和字符匹配的效率。
Expanding the dictionary file to recognize hundreds of thousands of words will drastically reduce the effectiveness of the simple number and letter matching.
扩展字典文件来识别成百上千的单词将大大降低简单数字和字符匹配的效率。
Expanding the dictionary file to recognize hundreds of thousands of words will drastically reduce the effectiveness of the simple number and letter matching.
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