单词	underfrequency relay
释义	underfrequency relay noun : a relay actuated by a fall in electrical frequency Word History Etymology under entry 3 + frequency
随便看	microbeless microbes microbia microbial microbially microbic microbicidal microbicide microbicides microbiologic microbiological microbiologically chiolite chion- chionanthi Chionanthus chionanthuses chionanthusses Chionaspis Chione Chionididae chiono- chionodoxa chionodoxas Chios

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