第二个要问的问题是，样本是否有代表性？明白我的意思吗？
The second question to ask is whether the sample is representative? See what I mean?
样本的代表性如何？
我们问的第二件事,就是样本的代表性。
The second thing we ask is how representative is the sample.
不是每个流鼻涕的人都需要接受检查——只要有一小份具有代表性的样本就行了。
Not every person with a sniffle need be tested-only a small, representative sample.
当我们看样本代表性的时候。
That's coming when we look at the representative of the sample.
再次，样本有多大的代表性？
该钻孔尺寸选定应提供足够有代表性的样本，剖析材料和参考。
The drill hole size selected should provide sufficient representative sample material for analysis and reference.
该钻孔尺寸选定应提供足够有代表性的样本，剖析材料和参考。
The drill hole size selected should provide sufficient representative sample material for analysis and reference.
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