had monitored
-había controlado
Past perfectconjugation ofmonitor.There are other translations for this conjugation.

monitor

In this example here, we had monitored this reef in Galapagos with temperature recorders, so we know the temperature of the water the coral's growing in.
En este ejemplo hemos monitoreado este arrecife en las Galápagos con registradores de temperatura así sabemos la temperatura del agua en la que crece el coral.
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