Make sure you have effective ventilation throughout your home.
确保家庭有效通风。
Push-pull air flow is a kind of economical and effective ventilation flow.
吹吸气流是一种经济和有效的通风气流组织形式。
Therefore, to measure accurately the effective ventilation is very important.
所以说，精确有效地量取通风量显得尤为重要。
Conclusion Artificial controlled mechanical ventilation is an effective method to treat severe asthma.
结论人工机械通气是救治危重症哮喘唯一有效的方法。
Positive pressure ventilation is the common and effective method to treat various respiratory failures.
正压通气是治疗各种原因导致呼吸衰竭的常规、有效的治疗方法。
Positive pressure ventilation is the common and effective method to treat various respiratory failures.
正压通气是治疗各种原因导致呼吸衰竭的常规、有效的治疗方法。
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