探险队采集的样品揭示了沉积物层之间化学成分及化石分布上的重大差异。
Samples recovered from the expedition revealed important differences in chemical composition and fossil distribution among the sediment layers.
挪威科学家对从70多名临床疾病患者身上采集的标本作了分析,未发现更多的此类变异情况。
Norwegian scientists have analysed samples from more than 70 patients with clinical illness and no further instances of this mutation have been detected.
几千年来,他们开始减少对野外狩猎和采集的依赖,而更多地依靠自己饲养的动物和播种的庄稼。
Over thousands of years, they began to depend less on what could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.
Remember the ancient near eastern kingdoms and their collectivized agriculture, control from the center, the individuals who carry out the farming or the grazing.
大家应该还记得这个古老的,近东王国,记得他们的采集农业,记得他们的中央集权,记得其民众所从事的农耕业和游牧业
There is a legal release form-- we'll talk about it in a minute--about the videoing.
里面有一张授权书,是关于视频采集的,我们一会再说这个
What if I collect that blood from patients that are already infected with Hepatitis B, purify the Hepatitis B protein, and inject that back into people?
如果我采集那些乙肝患者的血液,抽提出乙肝病毒的蛋白质,并且将其回注入人体内,将会如何呢
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