Failure position of valve shall be open.

故障时阀门位置为打开。

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Failure position of valve shall be closed.

故障时阀门位置为关闭。

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The only other predictors of survival were age and valve position.

其他唯一能预测生存率的因素是年龄和瓣膜位置。

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The only other predictors of survival were age and valve position.

其他唯一能预测生存率的因素是年龄和瓣膜位置。

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