阀门控制

The formation mechanism of the possible shrinkage and the different inclusion in valve steel casting and process control are analyzed.

分析了阀门铸钢件可能出现的不同种类夹杂和缩松缺陷的形成机制及工艺控制思路。

It is non-porous, improving the flow coefficiency of the valve and effectively sealing the casting from interaction with the controlled liquid.

它是不能渗透的，能够改善阀门的流量系数，将铸件与所控制的流体有效地隔开。

It means control box for valve actuator.

DKX 表示阀门电动装置控制箱。

Nuclear power plant valve is used in a large number of medium transport control equipment, is essential in the safe operation of nuclear power plants an important part.

核电阀门在核电站中是使用数量较多的介质输送控制设备，是核电站安全运行中的必不可少的重要组成部分。

The smooth operation of such valves, transmission, high efficiency, inverter control can be realized.

此类阀门的运转平稳，输送效率高，可实现变频控制。

Sensors for detecting flammable vapours and smoke alert plant personnel to potential hazards, and can also trigger automatic control systems that close valves to prevent the release of more hazardous material

探测可燃性烟雾的探头给工厂人员发出有潜在危险的警报，并且可以触发自动控制系统，关闭阀门以防止泄漏更多的危险物

Sensors for detecting flammable vapours and smoke alert plant personnel to potential hazards , and

探测可燃性烟雾的探头给工厂人员发出有潜在危险的警报，并且可以触发自动控制系统，关闭阀门以防止泄漏更多的危险物

This specification establishes the manufacturing requirements for PVC Schedule 80 specialty valves for use in industrial, pressure-rated, fluid-handling systems in applications up to 140oF, where precise control and corrosion resistance are of prime importance.

这个规定制定了对于用于工业、额定压力、流体处理系统，工作温度不超过60oC，精确控制和耐腐蚀性是最重要的考虑因素的PVC目录80专用特殊阀门的生产制造的要求。

Greater flexibility has come with fuel injectors, which can metre fuel more precisely than carburettors, and variable-valve control, which can optimise the opening and closing of inlet and exhaust valves to produce more power when accelerating or greater economy when dawdling around town.

重要改进来自于电喷系统，它能比化油器更精确地控制燃料的喷射；以及可变气门系统，它能够优化发动机的进气和排起阀门的开启，让车子在加速时更有力而在低速运行时更省油。

A fixed spool is set within the upper opening of the tubular body and connects the air supply tube to an air jet pipe while controlling the flowing direction of compressed air.

一个在上孔中的固定阀柱把供气管连接到空气喷管上而控制空气流向；一个在下孔内部的真空阀门两端安装一个脏物抽吸嘴和一个脏物排除嘴，并让两嘴互相连通，用压缩空气为两个嘴内部抽真空。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。