1 这个“两者”指的是客户还是样品?-----你没有表达清楚啊。
2 如果指的是样品,翻译应该是:“这是2个不同的客户申请的样品,2者没有关联”
----- These two irrelevant samples are applied for by two different clients .
这是2个不同的客户申请的样品,2者没有关联
These two diffrent samples respectively from different customers don't have any connection with each other