常見(jiàn)例句

雙語(yǔ)例句

• Quartz dust was provided by the Institute of Industrial Hygiene and Occupational Disease, Chinese Academy of Preventive Medicine.
  石英塵由中國(guó)疾病預(yù)防控制中心職業(yè)衛(wèi)生與中毒控制所提供。
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