包虫囊肿表现为圆形、卵圆形边缘光滑的影像，T1加权像呈低信号，T2加权像呈高信号。
The main MRI features of the cystic hydatid revealed as a round or oval shape with smooth margin and low signal intensity on T1 weighted sequence, and high signal intensity on T2 weight sequence.
先进的拉伸，定位和调整装置，通常安装在展开和缠绕点之间，以确保平整、边缘光滑的辊轴高速生产。
Sophisticated tensioning, positioning and aligning devices are normally installed between the unwind and wind-up stations to ensure flat, smooth edged rolls at high production speeds.
虽然卫星的快速旋转足以将它们挤压成一个光滑的椭圆形，但它无法解释碟形中心的边缘。
While the moons' rapid rotation would be enough to squash them into a smooth oval, it can't explain the rim around the centre of the saucer shape.
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