... 确 定 参 数 fixed parameter 无 定 指 indefinite reference 定[指]向性函数 directivity function ...
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And it also points out the mistakes in some Higher Mathematics Reference Books concerning indefinite integral, double integral and curve integral calculations.
同时还指出了几本高等数学参考书中关于不定积分、二重积分、曲线积分计算中出现的错误。
According to the whole process and basic condition, we know that text is base, author is reference background, reader is definite indefinite factor.
从读解的整个过程和基本情况看，文本是基础，作者是参考背景，读者是有限定的不定因素。
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