单词	含煤岩系
释义	含煤岩系coal-bearing series
随便看	voltage deviation voltage difference voltage differential relay voltage dip voltage directional relay voltage discharge curve voltage distortion voltage distribution voltage--diver voltage divider voltage-divider probe voltage divider theorem voltage-divider transducer voltage division voltage doubler voltage-doubler rectifier voltage doubler tube voltage-doubler tube voltage-doubling voltage-doubling arrangement voltage-doubling--circuit voltage downconverter voltage drift voltage drive voltage drop