powdery substance

常见例句

雙語例句

• Whole wheat flour is a powdery substance derived by grinding or mashing the wheat's whole grain.
  全麥麪粉是由研磨或擣碎整個小麥所得。
• An in service valve suffering from Dezincification has a white powdery substance or mineral stains on its exterior surface.
  應用中的閥門如果出現脫鋅現象，在産品表麪就會出現粉狀物質或鑛物汙點。
• The physical attributes of an in-service valve with Dezincification includes a white powdery substance or mineral stains on its exterior surface.
  使用中的閥門出現失鋅想象時的物理特征包括：在外表麪出現白色粉末或 鑛物汙點。
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權威例句

• The powdery lignin, once separated from the cellulose, is a very useful substance in its own right.
  FORBES: Ethanol
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