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| attempt; prove; try | |||
| to test | |||
| proven; try out | |||
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| trying | |||
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| tried | |||
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| approved; field-tested (im praktischen Einsatz); tried; tries; well tried; tested | |||
| well-tried; well-proven; firmly established | |||
| time tested; tried out | |||
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erprobte : 17 phrases in 6 subjects |
| Foreign trade | 2 |
| General | 7 |
| Medical | 4 |
| Military | 1 |
| Optics branch of physics | 2 |
| Perfume | 1 |