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Chronometric leveling (1) |
Chronometrisches Nivellement (1) |
frequency standards (1) |
Frequenzstandards (1) |
Metrologie (1) |
metrology (1) |
Relativistic Geodesy (1) |
Relativistische Geodesie (1) |
Strontium (1) |
Transportable Optical Clock (1) |
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