ballast = heavy material placed in the gondola of a balloon to improve stability
ballast = device to provide starting voltage and stabilize current in a fluorescent tube
ballast = gravel or broken stone laid in railroad or while making concrete
Wednesday, February 20, 2008
GRE Vocabulary - ballast
ballast = device to provide starting voltage and stabilize current in a fluorescent tube
ballast = gravel or broken stone laid in railroad or while making concrete
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