呼吸差是指最大吸气和最大呼气时胸围之差。可以反应呼吸器官的发育状况、呼吸肌肌力、胸廓活动范围以及肺组织的弹性。
一种压差式呼吸力学参数测量系统的硬件电路。
This article introduces a measurement circuit for Respiratory Mechanics Parameters which is based on differential pressure sensor.
不幸的是，这是不是欠发达的国家，工作条件差和呼吸设备很少使用真实的。
Unfortunately, this is not true of less developed countries where work conditions are poor and respiratory equipment is seldom used.
我想表达的是由于越来越差的空气质量，越来越多的城市居民都患上了呼吸道疾病。
I would like to express the fact that more city dwellers are suffering respiratory disease due to the deterioration of air quality.
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