volcanic rock-red soil sequence 火山岩
soil development sequence [土壤] 土壤发育序列
soil ecosystem sequence 土壤生态系统序列
The soil type, cause of soil formation and soil quality changes of Holocene loess-soil sequence have been clearly distinguished.
通过本文各指标的研究,进一步认识了汾渭平原全新世土壤的类型、成因与质量演变。
Instead of analysing the genome of a specific organism, scientists sequence all the DNA they find in environmental samples, ranging from seawater to soil.
有别于分析特定生物的基因组,科学家对取自海水、土壤等自然界的生物样本,统统进行DNA测序。
Essentially we can take a sample of soil or air — and in our case — water, and we can sequence the DNA out of it and tell you what is there.
从本质上讲,我们可以提取土壤或空气的样本。在这个例子中,我们提取的是水,我们可以从中测定出DNA序列,从而得知存在什么生物。
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