The Double Bubble sports a wide, downward-sloping nose which airflow pushes up, so its tail wings can be much smaller.
“双泡沫”机头部宽大、向下倾斜，导致气流上升获得升力，所以它的尾翼可以更小。
Instead of a single-fuselage cylinder, the D series melds two partial cylinders into a distinctive “double-bubble” shape.
D系列飞机采用了一种独特的“双体”外形机身，即类似于将两个柱体融合在一起的形式，改变了传统的单体机身。
Imaging is the mainstay of diagnosis. Often, one will see characteristic plain film findings of proximal bowel obstruction, ie "Double Bubble".
影像检查是主要的诊断手段，经常，我们可以看到一个有特征性近端肠梗阻的平片，如“双泡征”。
Imaging is the mainstay of diagnosis. Often, one will see characteristic plain film findings of proximal bowel obstruction, ie "Double Bubble".
影像检查是主要的诊断手段，经常，我们可以看到一个有特征性近端肠梗阻的平片，如“双泡征”。
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