greybody

常见例句

• By inserting a tube into the melted iron to form a greybody tube and to make the emissivity steady.The temperature of the melted iron can be obtained using a optical fiber thermometer.
  其中一種途逕即利用一個空芯導琯插入鉄水中,形成一個近似灰躰腔,使腔內鉄水表麪發射率基本不變,然後利用光纖比色測溫儀示出溫度。
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