ball faced hexagonal nut是什么意思，ball faced hexagonal nut的翻译，ball faced hexagonal nut音标、读音、用法和例句

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ball faced hexagonal nut是什么意思，ball faced hexagonal nut的翻译，ball faced hexagonal nut音标、读音、用法和例句_伍贰汉英词典

ball faced hexagonal nut

基本解释