For ten years she dwelled among the nomads of North America.她在北美游牧民中生活了十年。Nomads have inhabited this region for thousands of years.游牧民族在这地区居住已有数千年了.The townsmen despise and cheat the nomads.城镇居民轻视和诈骗游牧民....
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...
绿帘石有时相当显著.Epidote may be quite conspicuous.东沟坝角斑岩中主要共生矿物组合为阳起石+绿泥石+绿帘石十绿纤石+钠长石.The major mineral association in keratophyre rocks from Donggouba area is actinolite + chlorite + epidote + pumpellyite + albite....