Instead an enzyme, called an exonuclease, is attached to the top of the AHL. It cleaves individual base pairs from the DNA strand and feeds them through the pore to be detected one at a time.

取而代之一种叫做“核酸外切酶”的酶类被附着在AHL的顶部，它从DNA链上劈开各个碱基对，然后把它们填进孔道内，以供一个一个地识别。

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Instead an enzyme, called an exonuclease, is attached to the top of the AHL. It cleaves individual base pairs from the DNA strand and feeds them through the pore to be detected one at a time.

取而代之一种叫做“核酸外切酶”的酶类被附着在AHL的顶部，它从DNA链上劈开各个碱基对，然后把它们填进孔道内，以供一个一个地识别。

youdao