Precision valve action accurately meters the flow of paint to the point.

精密阀动作准确平方米油漆的点的流量。

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Ball is a sphere with a circular channel for gate parts, ball rotation with the stem of the valve action to achieve headstock.

球阀原理，球阀是用带有圆形通道的球体作启闭件，球体随阀杆转动实现启闭动作的阀门。

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The Certified Valve Action is a highly-visible liquid paint marker pre-certified to contain low levels of chlorides, halogens, low melting point metals and sulfur.

标准阀动作是一个非常明显的液体油漆标记预认证，含有低浓度的氯化物，卤素，低熔点金属和硫。

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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