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[求助]
求翻譯一段話
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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. 求翻譯以上內(nèi)容。 |
找到一些相關(guān)的精華帖子,希望有用哦~
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