这项技术可改善对透明物体如生物样本的显像。
This technique could also help improve TEM images of transparent objects like biological specimens.
然而提取这种微生物样本不是件容易事。
Obtaining samples of the bacteria, however, was not an easy task.
生物样本获得以后,只能用于录入DNA档案,之后样本必须销毁。
Once a biological sample was obtained, its use must be limited to generating a DNA profile only, and afterward the sample would be destroyed.
You can use PCR for fingerprinting as well, for looking in some unknown fluid for example, is a gene that I'm interested in there?
也可以用PCR做生物指纹鉴定,比如在一个未知溶液样本中,里面是不是有我感兴趣的那段基因呢
You can also use PCR to identify specific genes that are present in a biological sample.
你也可以利用PCR技术去识别,一个生物样本中的某段特定基因
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