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futurescu

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[求助] 求翻译一段话

Our test method is as follows.  We make a batch of a standard traffic paint formula using each lot of TiO2.  For reflectance we use a drawdown bar to cast a 15 mil (380 micron) wet film onto a Leneta 2A opacity chart and read the Y-reflectance on a spectrophotometer using the C illuminant at 2 degree observation angle.  For the contrast ratio, we follow the same procedure but casting a wet film of 5 mils (127 microns) and reading the contrast ratio on the spectrophotometer.

求翻译以上内容。
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