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белгісіз үлгі
In chemical analysis, a selected sample whose composition is unknown except to the person submitting it; used to test the validity of the measurement process.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Chemistry
- Category: Analytical chemistry
- Company: McGraw-Hill
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- Mankent2
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