| 1. | Fine bubbles originate in the lower respiratory tract .
小汽泡则来自下呼吸道。 |
| 2. | The respiratory tract conveys oxygen-rich air to the lungs .
呼吸道给肺输送富氧的空气。 |
| 3. | Respiratory tract fluid is the major product of the normal lung .
呼吸道液体是正常肺的主要产物。 |
| 4. | The atmosphere is often highly irritating to the eyes and to the respiratory tract .
大气常会刺激眼睛和呼吸系统。 |
| 5. | The respiratory tract is an important portal of entry for respiratory viruses .
呼吸道是呼吸道病毒入侵的重要门户。 |
| 6. | The secretory system of the respiratory tract is probably the most appreciated .
呼吸道的分泌系统可能是最先被意识到的。 |
| 7. | A rust or prune juice in nasal discharge colour indicates blood originating from lower respiratory tract .
铁锈色或深紫红色鼻液表示血液来自下呼吸道。 |
| 8. | Acute sinusitis is usually initiated by an acute respiratory tract infection of viral etiology .
急性鼻窦炎常常是由病毒性病因的急性呼吸道感染而发生。 |
| 9. | The acute symptoms of contact of beryllium with the mucous membrane of the eye and upper respiratory tract include itch, and rhinorrhea .
眼睛粘膜和上呼吸道粘膜若接触铍，其急性症状是发痒、灼烧和流鼻涕。 |
| 10. | Institutions urged to prevent respiratory tract infection
院舍须预防呼吸道感染 |
