ungalvanized steel plate是什么意思，ungalvanized steel plate的翻译，ungalvanized steel plate音标、读音、用法和例句_开心英文字典

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ungalvanized steel plate是什么意思，ungalvanized steel plate的翻译，ungalvanized steel plate音标、读音、用法和例句_开心英文字典_柠咚词