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Therefore, the torque required to open the gate valve required torque than the closure of large, in addition, for a pair of contact between the sealing surface, the Non Rising Stem Resilient Seated Gate Valves coefficient of static friction between them than the dynamic friction coefficient, to make them from the static state generate the relative movement is required to exert greater force to overcome the static friction; due to temperature changes, so that the sealing surface pressure between the larger, need to overcome the static friction force also will be bigger, so that when you open the valve on the stem nut on the sometimes increase the torque exerted a lot.

所以，开启闸阀所需的力矩比关闭闸阀所需的力矩大，此外，对于一对互相接触的密封面来说，它们之间的静摩擦系数也比动摩擦系数大，要使它们从静止状态产生相对运动，需施加较大的力以克服静摩擦力；由于温度变化，使密封面间的压力变大，需要克服的静摩擦力也随之变大，从而使开启闸阀时，对阀杆螺母上施加的力矩有时会增大很多。" Moment analysis of valve operation "是由中国闸阀网提供的国际阀门新闻，译文仅供参考。另外，中国闸阀网还提供相关产品搜索：闸阀型号、闸阀价格、闸阀技术、闸阀新闻、闸阀生产商等。

At the same time, theapplication of this method to practice is simpler both in operation and computation.

同时还具有计算和操作简单的特点，有较高的实用价值。

Good computer skills in operation of office software.

有团队合作精神及良好的自我表现。

This crusher has the advantage of reliable construction, high prod activity, easy adjustment and less cost in operation.

这个破碎的好处可靠施工、高刺激活动，容易调整和运行成本较低。

In operation, the screw cylindrical surface and the pump cylinder wall formed between the layer of oil film to prevent direct contact between the metal, so that screw tooth surface wear significantly reduced.

在运行中，螺杆外圆表面和泵缸内壁之间形成的一层油膜，可防止金属之间的直接接触，使螺杆齿面的磨损大大减少。

Sludge activation phase, acclimatization phase and aerobic granulation phase. In operation control, the settling-time was used as the key factor for the formation of aerobic granules, which could decant the flocculent sludge and regulate the organic loading, and eventually promote the granulation process.

在运行控制过程中通过将沉降时间作为培养好氧颗粒污泥的一个关键控制参数，它既可以去除反应器中沉降性差的污泥还可以在短时间内调节反应器中的运行负荷，从而促进反应器中好氧污泥快速实现颗粒化。

It covers the important developments such as the latest diesel-electric LNG carriers that will soon be in operation.

它包括重要的发展，例如不久将是在营运中的的最新的柴油发电机的LNG 搬运工。

Important developments such as the latest diesel-electric LNG carriers that will soon be in operation.

重要的发展，例如不久将是在营运中的的最新的柴油发电机的LNG 搬运工。

Bein8 simple, fast and duplicable in operation, gas chrormatography is a good method to determine the content of camphor and menthol with accurate, stable and reliable results.

气相色谱测定法测定樟脑与薄荷脑快速、简便、重现性好，结果准确、稳定、可靠。

An Elate weather-control system is in operation at Moscow's Bykovo Airport.

一elate天气控制系统在运作，在莫斯科贝科沃机场。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。