689 k is how much reaumur

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688.5 k is how much reaumur 688.6 k is how much reaumur 688.7 k is how much reaumur 688.8 k is how much reaumur 688.9 k is how much reaumur 689 k is how much reaumur 689.1 k is how much reaumur 689.2 k is how much reaumur 689.3 k is how much reaumur 689.4 k is how much reaumur

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