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scouring device造句

"scouring device"是什么意思  
造句与例句手机版
  • On 30 September 1941, United States patent 2, 257, 456 was issued to Joseph R . Crockford of Chicago, IL for a scouring device of the type employed for " cleansing and scouring pots, pans and other household implements . " The invention provided for a " plate of non-corrosive metal, arched or curved to fit the fingers ."
  • It's difficult to see scouring device in a sentence. 用scouring device造句挺难的
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