关节炎的新疗法可能是止痛药之外的另一种选择。New ways to treat arthritis may provide an alternative to painkillers.小剂量的止痛药对于降低体温非常有用。Pain-killers are very useful in small amounts to bring your temperature down.阿司匹林是药性平和的止痛药。Aspirin is a mild a...
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...