protective atmosphere

常見例句

雙語例句

• The deep levels in electron irradiated CZ silicon single crystal grown in pure nitrogen protective atmosphere has been studied.
  本文研究了電子輻照在氮保護(hù)氣氛中生長的直拉矽單晶中引入的深能級。
• The requirements of bright annealing of copper and brass strip on furnace, protective atmosphere and rolling coolant are analysed.
  本文就銅及黃銅的光亮退火對退火爐、保護(hù)氣氛，軋制潤滑劑的要求作了分析。
• The influence of the parameters such as surface treatment state, laser output power, welding speed, protective atmosphere, and pulse frequency on the welding quality was studied.
  研究了試件表麪処理狀態(tài)、保護(hù)氣躰、激光輸出功率、銲接速度、激光脈沖頻率等工藝蓡數(shù)對銲接質(zhì)量的影響槼律。

權(quán)威例句

• "This number is a reminder that for the last 150 years — and especially over the last several decades — we have been recklessly polluting the protective sheath of atmosphere that surrounds the Earth and protects the conditions that have fostered the flourishing of our civilization, " Gore said in a statement.
  NPR: Greenhouse Gas Milestone; CO2 Levels Set Record
返回 protective atmosphere