Valve is the role of central valve along the pathway of vertical lines move to achieve open or closed pipeline access road.

气动刀闸阀气动阀门价格表气动管夹阀气动角座阀闸阀的作用是利用阀瓣沿通路中心的垂直线方向移动来实现开启或关闭管道通路。

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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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In addition, indoor air system, heat recovery systems, central vacuum system, fire doors Solenoid Valve Control system and indoor fire hose system configurations are rare in China.

此外，室内空气系统，热回收系统，中央真空系统，防火门电磁阀控制系统和室内消防水带的系统配置在中国是罕见的。

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His central heart valve was leaking and he was taken to a hospital 500 yards away.

BBC: Stoke City legend Terry Conroy recovers from surgery

That's partly because Britain's labour and product markets are more flexible than many of its neighbours': the labour market has a safety valve in the form of the 1m workers who arrived from central and eastern Europe over the past four years and are now beginning to go home.

ECONOMIST: Britain's economy