嗯,我英文不是很好,看起来的确是蛮吃力的。个人认为应该结合划线前面内容一起来看, “the absolute difference between the two test results obtained will not exceed the repeatability limit r deduced by statistical analysis on the international interlaboratory study nos . 2 (IIS2) and 4A (IIS 4A) results in more than 5 % of cases”