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The design doesn't rely on the packing to position the gate, making packing replacement easier.

这种设计结构不依赖密封填料来定位闸板，因此使得密封填料的更换更加简单。

Includes floorstand with gate position indicator, handwheel, fittings and extension.

包括带有闸板指示器的地轴承架，手轮，连接件和加长件。

Please quote as soon as possible for 6 nos 22 inch gate or ball valve.

请尽快报6台的22英寸的闸阀或球阀。

In simple cases a standard gate or needle valve, for example, may be used.

在一些简单的情况下，可以使用诸如标准闸阀或针形阀来作为采样阀。

The results show that the failure of gate valve is caused by electrochemical corrosion and scaling because of the w.

结果表明，该批闸阀的失效是由于材质不符合设计要求、环境介质的电化学腐蚀和结垢引起的。

The Bi-Directional Knife Gate Valve can be used in either direction on dead-end service.

双向刀闸阀的的任何一个方向都可以用在终端应用场合。

Many times the cycle life of a standard knife gate valve.

使用寿命是标准刀闸阀的许多倍。

Design Bellows valve structure of the most common form of bellows globe valve and gate valve.

设计要求波纹管阀门最常用的结构形式为波纹管截止阀和闸阀。

They are superior in "versatility" as compared to a gate or globe valve.

与闸阀或截止阀相比，蝶阀具有更好的"通用性"。

A gate or ball type valve can be used or the isolation valve can be installed further upstream.

可以采用闸阀或球阀，或者可以将隔离阀安装在更上游的地方。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。