名词
中文翻译：Unknown
同义词：
['ballast compactor', 'ballast edge compactor']
例句：
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1. The ballast edge compactoris used to remove the excess ballastfrom the transformer's core.
球压边压实机用于从变压器的铁芯中去除多余的铁芯。
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2. The ballast edge compactor was designed to improvethe efficiency of the power grid.
球压边压实机被设计用来提高电网的效率。
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3.The ballast edge compactor was usedto test the new circuit breaker's performance.
球压边压实机被用来测试新断路器的性能。