No experiment can possibly be an exact replication of a previous one.
没有一个实验是可以精确地复制前一个实验。
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At the end of the experiment, a little girl told me, "Apart from the fact that improper replication of the DNA molecule causes genetic disease, we have understood nothing else."
Results: the quality controlling of experiment links was very important to ensure replication and objectivity of the estimation the postmortem interval.