English translation: Test to finalize the design (or pattern)
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Explanation: Found the term in Dongfang Dadian; seems to eb confirmed in Google:
"PSB Corporation's Type Test Certification Scheme samples and tests your products according to local or international standards and issues or two-year certificate upon compliance. A sampling is made from production lots representative of your production process."
Rod Nelson Canada Local time: 02:16 Native speaker of: English PRO pts in pair: 199