The valve can not bear the push, pull and torsion action generated by the heat-expansion and cold-contraction of pipe or other reason.

盲板阀不得承受管道热胀冷缩或其他原因发生的外力对其产生推拉、扭曲作用。

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On one valve especially they all concentrate: the valve labeled "central bank rediscount rate," which we have already seen in action.

他们将力量特别集中于一个阀门：标示为“央行再贴现率”的阀门。现在，这个阀门已经启动。

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The flexing action of the sleeve breaks up any sediment or build-up in the valve, which makes the Type a a reliable low-maintenance valve.

套管的弹性运动可以碎裂淤积在阀门内的任何沉淀物，这使得A型夹管阀成为一款可靠的低维护的阀门。

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The old father was putting the radio into action a single-valve wireless he had won about a month before.

NEWYORKER: Among Animals and Plants

Ari Fleischer, President Bush's spokesman, said the goal of the executive action is to "provide a safety valve" if any national security issues might arise by releasing past presidential records.

CNN: Bush aides move to put hold on some papers of past presidents