1、

In that era, YMCA was a catalyzer to boom this sport with geometrical population expansion.

当时,YMCA(基督教青年会)在更广泛的区域推广这项运动起了很大促进作用。

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2、

On the pilot digestor, hydrothermal degradation ( HTD) experiments of lawn-grass by the catalytic action of di-lute vitriol and no additional catalyzer were carried out.

在小型湿解实验装置中,对草坪草进行了加稀硫酸催化和不加任何催化剂的湿解实验。

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3、

Fusel oil and acetic acid were used as raw materials in this experiment with heteropoly acid HPW/ MxOy as catalyzer.

本实验以杂醇油和乙酸为原料,杂多酸HPW/MxOy为催化剂。

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