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| respiratory system (由呼吸道和肺组成。呼吸道包括鼻、咽、喉、气管和各级支气管。临床上常将鼻、咽和喉称为上呼吸道，气管和支气管称为下呼吸道。肺由实质 (支气管和肺泡)和间质 (结缔组织、血管、神经、淋巴管和淋巴结)组成。呼吸系统的主要功能是进行气体交换，即吸入氧，排出二氧化碳) | |||
| respiratory system The structures and passages involved with the intake, expulsion and exchange of oxygen and carbon dioxide in the vertebrate body (入气口的结构和通道，在脊椎动物体内交换氧气和二氧化碳。) | |||
| respiratory apparatus | |||
| air induction system | |||
| respiratory system | |||
| 呼吸系 统: 36 phrases in 17 subjects |
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