antiquated sand

基本解釋

• 廢砂，粘砂

英漢例句

雙語例句

• This series uses multiple-step and rotating point fixed method to clean away the antiquated sand and oxidation layer from the surface quickly, and make the surface bright and clean.
  該系列采用多工位定點旋轉(zhuǎn)拋射清理的方式將鑄件表面的粘砂、氧化皮去除，使鑄件重現(xiàn)金屬本色。

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專業(yè)釋義

機械工程

• 廢砂，粘砂