从亚细胞部分制备RNA,可使专一的mRNA序列的丰度提高.Specific mRNA sequences can be enriched for by preparing the RNA from subcellular fractions.土壤生态系统中水分和养分的丰度和有效性决定土壤的肥力.The abundance and availability of water and nutrients in a soil ecosyste...
One of the supreme quests of alchemy is to transmute lead into gold.炼金术的终极目的之一是将铅转化为金。The third part quests the reality significance and localization ofof neutralization.第三部分分析了“中和”之美的现实意义和局限性.The host kept introducing t...