For instance, Dorman notes that half of the nasal cavity of a rat is lined with olfactory-system cells. In humans, this receptive area is much smaller, he says - "only about 3 to 5 percent."
多尔曼指出，例如大鼠鼻腔有一半的面积附有嗅细胞，而对于人类来说，这种嗅觉接收区就小得多，他说——“也就鼻腔的3% - 5%吧。”
Even bigger: the nasal cavity is the only area where the brain meets the outside world.
它还有着更大的前景：鼻腔是大脑与外部世界唯一接触的直接接触区域。
The nose exhalation gastric tube indwelling method could wide the opening angle of nasal valve area and efficiently judge the opening to increase the success rate of the indwelling gastric tube.
呼气法能增大鼻瓣区开口角度并有效判断开口位置，提高置管成功率。
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