薄膜障碍问题是第一类椭圆型变分不等式的代表性模型。

The obstacle problem is the typical example of the elliptic variational inequality of the first kind.

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薄膜障碍问题是第一类椭圆型变分不等式的代表性模型。

The obstacle problem is the typical example of the elliptic variational inequality of the first kind.

youdao