The relationship between vehicle speed and ventilation cycle time can be described by quadratic equations.
车速与竖井的通风周期时间成二次方关系。
objective the changes in respiration cycle, ventilation volume and blood analysis after bronchoalveolar lavage ( bal) in dogs with steam induced inhalation injury were investigated to explore ways of treating inhalation injury.
目的探讨蒸气吸入性损伤犬支气管肺泡灌洗(BAL)后呼吸周期、通气量和血气的变化,以期为临床治疗提供实验依据。
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