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| πρότυπα πλακίδια ελέγχου ποιότητας | |||
| cale/étalon | |||
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| διακριβωτήρας με άκρα; καλίμπρα με άκρα; ορθογωνιακός διακριβωτήρας | |||
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cale/étalon : 6 phrases in 2 subjects |
| Earth sciences | 5 |
| Technology | 1 |
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