• “rotating drum”例句

    “rotating drum”例句

    单词 rotating drum 例句 DEFINITIVE EXAMPLES 权威例句〔TURN〕The stones are polished in a rotating drum full of abrasive powder. 宝石被放在装满研磨粉的转轮内抛光。朗文写作活用〔drum brake〕A brake in which the friction is caused by a set of pads that pres...

    2025-07-18
热文观察...