目前，已有很多载体材料用于脲酶的固定化，如多糖、聚合物、无机吸附剂等。

So far, there has been many supports applied in the immobilization of urease, such as polysaccharides, polymer, inorganic absorbents and so on.

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本文提出一种线性化射频多载波高功率放大器的自适应射频预失真器。

This paper presents an adaptive RF predistorter to linearize multi-carriers power amplifiers.

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