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| refractometer m | |||
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| refractometers m | |||
| English thesaurus | |||
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| Apparatus used to measure the refractive indices of gems. | |||
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refractometer : 26 phrases in 6 subjects |
| Automated equipment | 1 |
| Chemistry | 3 |
| Earth sciences | 2 |
| Environment | 1 |
| Measuring instruments | 16 |
| Technology | 3 |