从牛类动物基因组一系列的调查发现奶牛基因组包含了22，000个基因。
The bovine genome sequencing project found that cow genome contains 22,000 genes.
从牛类动物基因组一系列的调查发现奶牛基因组包含了25,000个基因。
The bovine genome sequencing project found that cow genome contains 25,000 genes.
奶牛进行培训，以遵循一系列的路径，导致挤奶站。
Cows are trained to follow a series of paths that lead to milking stations.
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