presen

presen

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例句

In the presen paper, a new formula for the preparation of polyvinyl acetal adhesive has been introduced.

报道了一种制备聚乙烯醇缩醛胶的新配方。

The prospect of development and application is presen. . .

最后，文章对粉煤灰的开发应用前景作了展望。