powdery substance 中文意思是什麼

powdery substance 解釋
粉末狀物質
  • powdery : adj. 1. 粉的,粉狀的。2. 滿是粉的;布滿塵埃的。3. 容易變成粉的。powderiness n.
  • substance : n 1 物質,材料;【哲學】實體,本體,本質 (opp appearance)。2 實質,內容;(故事等的)要旨,要領...
  1. The physical attributes of an in - service valve with dezincification includes a white powdery substance or mineral stains on its exterior surface

    應用中的閥門出現脫鋅現象的物理特徵是,在產品表面出現粉狀物質或礦物污點。
  2. A letter containing a powdery substance is believed to be the source of the anthrax becteria that showed up as a skin rash on an nbc employee

    一封帶有粉狀物質的信件被確定為炭疽熱細菌的來源,因為一位nbc雇員已經由此得了皮炎。
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