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| مخطط التحكم (A chart that displays additional information about a graph in terms of the following control lines: Average, Upper limit (calculated based on natural process deviation and six sigma technique), and Lower limit (calculated based on natural process deviation and six sigma technique)) | |||
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| ملوِّث | |||
| لوحة المراقبة | |||
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Control chart : 4 phrases in 2 subjects |
| Automatic control | 1 |
| Mathematics | 3 |