Then, using a technology called the Sanger method, each piece was sequenced letter by letter.

随后，他们运用“桑格测序法” （注：双脱氧链终止法）将每个片段内的碱基进行逐一测序 （即A, T, C, G）。

So in 1998, scientists around the world were furiously sequencing lines of genetic code using the tried and true, yet laborious, Sanger method.

因此1998年，世界各国的科学家运用实践证明过的“桑格测序法”对各种遗传基因展开“疯狂”的测序。