方法：以牛奶作为胃液体试验餐，采用实时超声测定液体胃排空。

METHODS: Gastric emptying times were observed by type-B ultrasonography after ingestion of liquid meal.

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为了解营养不良患儿的胃动力及排空情况，应用B型实时超声对30例营养不良患儿液体试验餐后的胃运动与排空功能进行检测。

In an attempt to study the motility and evacuation of stomach, the gastric movement and evacuation were measured by using B-ultrasonography in 30 children with malnutrition after liquid test meal.

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每位试验者每天吃三餐。

All of the subjects ate three meals a day.

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