A source said the burn-through probably occurred at a seal point between the booster 's third and fourth sections.

一位提供消息的人说，烧穿点可能发生在火箭的第三和第四部分之间的焊接点上。

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In the actual, the rotate axis seal construction that has no dynamic leaking point is not much seen, and both study from the theories and application from actual are necessary.

无动密封点的旋转轴密封结构在实际应用中并不多见，无论从理论研究还是实际应用开发都是必要的。

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The principle of magnetic-fluid reciprocating shaft seal is introduced, some problems of its design and application are analyzed from the point of view of tribological design.

介绍了磁流体往复轴密封的原理，从摩擦学设计角度分析了其设计和使用中要注意的问题。

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To seal her point, McCardle pulls out a personal anecdote.

FORBES: Steve Jobs Showed It's Not Indulgent to Follow Your Bliss, It's Required

Defoe had two further opportunities to win it late on but West Ham defended heroically to seal a point that may prove crucial in their bid to avoid relegation.

BBC: Tottenham 0-0 West Ham

And Lesley Vainikolo and Wales' Matthew Watkins each scored two tries after the break to seal the bonus point.

BBC: Gloucester 48-5 Calvisano