ball-and-race type pulverizer mill是什么意思，ball-and-race type pulverizer mill的翻译，ball-and-race type pulverizer mill音标、读音、用法和例句

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ball-and-race type pulverizer mill是什么意思，ball-and-race type pulverizer mill的翻译，ball-and-race type pulverizer mill音标、读音、用法和例句_果味酸柯林斯词典