The second sentence seemed to add nothing to the first and was rather confusing, since it added a condition of incompatibility unrelated with the criterion of the first sentence and therefore led to additional vagueness.
第二句似乎没有在第一句的基础上增加任何内容，而且相当令人困惑，因为第二句增加了与第一句所定标准无关的不相符条件，徒添模糊性。