鹅颈管的“组合效应”改变了其几何组成部分的水流特性，而遵循其固有的运动规律。
The flow characteristics of geometric component of the gooseneck is changed due to "composite effect", and it follows an original motion law.
原始图像可发现小的和巨大动脉瘤，显示瘤腔、瘤壁、瘤体、占位效应准确，其瘤颈、瘤腔的信号多高于MRA；
The small or giant aneurysm, aneurysmal sac, wall, body, mass effect can be showed by the source images, its signals of aneurysmal neck and sac was higher than MRA.
以同样电强度刺激豚鼠颈交感干头端，只引起心率加快效应，对呼吸活动几乎无影响。
Electrical stimulation in the same intensity to cervical sympathetic trunks in guinea pigs only caused the heart rate to quicken but had hardly effects on respiratory activities.
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