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1. The coating tester is used to check the quality of the paint before it is applied.
涂层测试器用于在涂抹油漆之前检查其质量。
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2. The coating tester was used to measure the thickness of the coating.
涂层测试器被用来测量涂层的厚度。
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3. The coating tester was used to ensure that the paint adhered properly to the surface.
涂层测试器被用来确保油漆能正确附着在表面上。