RQ-respiratory quotient

例句：

1. 1.The respiratory quotient is a measureof how much oxygen the body uses comparedto the amount of carbon dioxide itproduces.
   呼吸商是衡量身体使用氧气与产生二氧化碳量的比例。
2. 2. Therespiratory quotient canbe affected by factors such asaltitude and exercise level.
   呼吸商可能会受到海拔和运动水平等因素的影响。
3. 3. Ahigh respiratory quotient indicates that thebody is using more oxygen than it needs, which can lead to fatigue and otherhealth problems.
   呼吸商高意味着身体需要更多的氧气，这可能导致疲劳和其他健康问题。