囚犯，告诉我，是谁锻造了这坚牢的锁链？

Prisoner, tell me, who was it that wrought this unbreakable chain?

等到工作完成，铁链坚牢完善，我发现这铁链把我捆住了。

When at last the work was done and the links were complete and unbreakable, I found that it held me in its grip.

发现DNA对萘酚与坚牢蓝盐的显色具有明显的增色效应。

It was discovered that DNA had significant hyperchromic effect to the colored complex of naphthol with fast blue salt.