Through many experiments the title compound was obtained in 92% yield.

通过多次试验，使标题化合物达到92%的高收率。

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In this article, an improved simple and fast RNA extraction method was developed through many experiments.

本文介绍经过反复实验后改进的棉花rna的提取方法，它具有快速、简单等特点。

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In this paper, the optimal condition of the yeast cell breaking was studied and finally confirmed through many experiments.

研究了在重组酵母测评系统中，重组酵母细胞破壁条件的优化问题。

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Sarah Kite, from the British Union for the Abolition of Vivisection, was critical of the development, saying that many animals were being put through horrific and pointless experiments.

BBC: New pig clones: PPL Therapeutics