Schirmer试验以滤纸条作为工具，测量泪液的产生量，如图所示为一名患干燥综合征的病人。
The Schirmer test USES filter paper to wick up tears and measure the amount of production, as shown in a patient with Sjogren syndrome.
当他想过滤掉水继续试验的时候，他发现留在过滤纸上的不是羟基磷灰石粉末，而是形成了一张薄膜。
While he wanted to filter out the water and continue the experiment, he found that instead of getting hydroxyapatite powder on the filter paper, a film formed on the paper.
做试验前，老师给我们每个人发了一张滤纸。
The teacher gave each of us a piece of filter paper before doing the experiment.
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