control day meaning in English
控制日
Examples
- A total of 16 healthy subjects underwent bronchoscopy with bronchial mucosal biopsies and bronchoalveolar lavage ( bal ) on two occasions , in random order : once at 14 h after a 2 - h exposure to air pollution in a busy road tunnel , and once after a control day with subjects exposed to urban air during normal activities
对16名健康受试者在随机顺序下限后进行两种处理，分别为暴露于某繁忙的公路隧道的污染空气2小时，和选择某一天暴露于一般繁忙程度的城市大气中作为对照， 14小时后进行支气管镜下支气管粘膜活检和支气管肺泡灌洗（ bal ） 。