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Operation analysis and investigation show that it is caused by the inappropriate design of hot vapor bypass control system, so the revamping has been carried out as follows: The diameter of hot vapor bypass pipeline has been enlarged from DN 40 mm to 80 mm, and the pressure difference of hot vapor bypass adjusting valve decreased from 50 kPa to 35 kPa; A vent pipeline for non-condensable gas fro.

改造的措施主要有：增大了热旁路管道的直径(由DN40mm增大到DN80mm)，并降低了热旁路调节阀的压差取值(由50kPa降低到35kPa)；增设一条自冷凝器壳程出口至回流罐的不凝气放空管道；对脱丁烷塔分程控制系统进行了改造，即将调节器输出信号的0-45%，55%%-100%分别用于控制热旁路调节阀和放空阀。

A design case of to-and-fro yarn-guiding system is presented to illustrate the application of this method.

通过捻线机往复导纱系统设计实例说明和验证了该方法。

His hands were stretched open, and he was looking to-and-fro over the earth searching for his saints.

他看着地球上，四处寻找他的圣徒。

His hands were stretched open, and he was looking to-and-fro over the earth searching for his saints.

他看著地球上，四处寻找他的圣徒。

His hands were stretched open, and he was looking to-and-fro over the earth searching for his saints.

她问他很多问题，诸如为何在人上嘴唇的皮肤会有一道压痕？

A live fish is swimming to-and-fro in the water.

一条鱼在水里游来游去。

A scheme is put forward, which is designed for to-and-fro maglev train between two stations, and the practicable methods for each part of this scheme are discussed.

提出了适用于我国现阶段的，两站间往复式磁悬浮列车线路的ATC系统方案，讨论了各部分的组成和实现方法。

Underneath the phenomenon of diverse choices and events , there is a most basic cycling, to-and-fro interweaved-structure.

在多样的选择和事件之下存在着最基本的循环往复的交织结构。

This is much quicker than the to-and-fro process needed when reading the printed word.

这比阅读印刷书本时翻来翻去要快得多。

I like calm, like to be in a few inattentive night, people sits the home together to listening to calm to-and-fro between us.

我喜欢平静，喜欢在一些松散的夜晚，家人们坐在一起听着平静在我们之间走来走去。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。