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".
本文提出一种铯原子束激射器的建议，其中利用了双束激光抽运选态技术和原子贮存泡方法。
In this paper a cesium beam maser is proposed in which the optically pumping state selection technique by two laser beams is used together with the atom storage bulb technique.
双水相的分相时间曲线出现一最低点，这可能与囊泡本身的性质以及囊泡之间的相互作用有关。
There is a minimum in the curves of phase separating time in the ASTP systems, which may be related to the nature of vesicle and the interaction of vesicles with each other.
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