A reverse-feeding seal device was designed, and its Structure parameters were confirmed.

设计了一种反向输料密封结构，并确定了其结构参数。

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Two ends of the mixing axis that articulates with the mixing silo are loaded quadruple axle end seal device.

筒体与轴两端的相连处装有四重轴端密封装置。

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This paper introduces the structure and performance of the seal device and its field application in Gudao Oil field.

文章介绍了该密封装置的结构、性能以及在孤岛油田的现场应用情况。

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Lotem said that during the heart catheterization procedure doctors would use a thin plastic tube to insert an "umbrella-like" device that will seal the hole between the two upper chambers of the heart.

CNN: Sharon heart operation set for Thursday

Jude's device, called the Amplatzer PFO Occluder, is used to seal a flap-like passageway between the left and right atriums of the heart.

WSJ: Doctors Debate Whether Strokes Be Prevented With a Heart-Plug Procedure