perineural adminis-tration 神经周围给药
It demonstrates the existence tragedy of human being and highlights "anti-tration" of the free will.
它既揭示了人的存在悲剧，又高扬着“反抗绝望”的自由意志。
In the PCR reactions, the coneen- tration ratio between the degenerate primers was essential for influencing amplification efficiency.
在PCR反应中，简并引物之间的浓度配比是影响扩增效率的关键。
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