The instructions say to do these once through, ten times a day.
训练说明：按照顺序做一遍为一组，一天做10组。
A mathematical model is set up for calculating the water swell in a supercritical pressure once through boiler during its start up.
本文建立了超临界直流锅炉启动过程汽水膨胀的计算模型，并用试验进行了验证。
After the catalyst is adopted, high conversion rate of hydrocarbon and high once through yield of ethylene and propylene can be achieved.
采用本发明的催化剂可获得较高的烃类转化率和乙烯丙烯单程收率。
Scheme for retrofit of single furnace once through boiler into controlled circulating boiler is introduced, including the scope and results.
介绍了原单炉膛直流锅炉改造成控制循环锅炉方案、改造范围及效果。
This paper introduces the waterwall features and start-up procedure of domestic 600mw supercritical variable pressure operating once through boiler under development.
文中介绍正在研制的国产600MW超临界变压运行直流锅炉水冷壁结构特点和启动过程。
Rinse surfaces once through with DI water until conductivity of inlet and outlet fluids are within tolerances.
用去离子水单次使用冲洗表面直到入口和出口的液体的电导率在容许范围内。
In this paper, an engineering example of once through demolition of a gridiron container reinforced concrete structure by millisecond water pressure blasting is briefly introduced.
介绍了用微差水压爆破一次性拆除一个多格容器式钢筋混凝土构筑物的工程实例。
The experiments show that the full scope real time simulation mathematical model of Russia made 500MW units supercritical once through boiler has excellent dynamic characteristics.
实验结果表明：所建立的苏制5 0 0MW超临界压力直流锅炉全工况的实时仿真数学模型具有良好的动态特性。
This article introduces the purpose, method and procedure of HF acid chemical clean for once through boiler, and comparison between chemical clean of different mediums is presented as well.
重点介绍直流锅炉氢氟酸酸洗的目的，方法及过程，还对不同介质的化学清洗进行了比较。
Once through the arch, Shasta found himself in a courtyard which was also a garden.
踏进拱门，沙斯塔发觉自己进了一个院子，那也是个花园。
Once through those doors, you will walk directly to the end of that long hallway to another set of large doors.
一旦你穿过那些门，就可以直接走到那长廊底的另一对大门。
Once through, you're into what was the sea wall and a small beach, but is now a nature reserve, created out of the spoil of the Channel tunnel.
出了隘口，你就看见了海堤，还有一片小小的沙滩，现在这里是从英吉利海峡隧道弃土中开发出的一片自然保护区。
The dynamic thermal hydraulic model of Once Through Steam Generator (OTSG) is developed, Which characterized by lumped parameters with moving boundary.
采用集中参数处理方法，把直流蒸汽发生器二次侧按流体相变分区，建立了动态热工水力模型。
The once-through yield of furfuryl alcohol is greater than 90%, and the outlet mixture contains no any unreacted furfural.
糠醇的单程产率在90%以上，出口混合物中没有未反应的糠醛。
This paper presents the commecial test results of the FCC unit in Jiu-jiang Refinery by shifting the total recycle operation to once-through operation.
文中介绍了九江炼油厂催化裂化装置将全回炼操作改为单程催化裂化操作的工业试验。
Water chemistry condition in common use is introduced and main advantages of integrated regulation water treatment method on once-through unit are analyzed emphatically in this paper.
介绍了直流机组常用的水化学工况，并着重分析了直流机组联合调节水处理法的主要优点。
The once-through boiler of large capacity and high parameters is a very complex unit to be controlled.
大容量高参数的直流锅炉单元机组是一个十分复杂的调节对象。
On this base, the feasibility of applying vertical tube coils to 600mw supercritical sliding pressure once-through boiler is demonstrated.
在此基础上，论证了600MW超临界压力变压运行直流锅炉采用垂直管圈的可行性。
According to the running features of supercritical once-through boiler, the article proposes a neural network decoupling control method.
本文针对超临界直流锅炉运行特性，提出了一种神经网络解耦控制方法。
The types and design principles of once-through boiler startup system and steam turbine by-pass system are expounded.
阐述了直流锅炉启动系统与汽轮机旁路系统的型式及设计原则。
One of the key points to ensure the normal operation of "once-through solar water heating system" is the outlet flow quantity control.
直流式太阳能热水系统的出口流量控制是保证系统正常运行的关键之一。
The research results has provided an effective solution to the marine creature fouling in seawater once-through cooling system of gas-and-steam united circulating power plant.
研究结果为燃气蒸汽联合循环电厂直流冷却系统中的海生物污染控制提供了一种有效的解决方案。
The dynamic characters and control system for 600 MW supercritical pressure once-through boiler equipped with internal start-up control are relatively complicated.
采用内置式启动控制的600MW超临界压力螺旋管圈型直流锅炉，其作为被控对象的动态特性及控制系统都较复杂。
The method can be applied to a variety of once-through boilers with different capacities and configurations and offer great convenience in varying the system construction and calculating parameters.
该方法可用于各种容量、结构型式的直流锅炉，通用性强，而且改变结构、参数非常简单方便。
Common kinds and technical features of the starting-up system for once-through boilers have been analysed and compared.
对超临界直流炉启动系统的常见类型及其技术特点进行了分析比较。
According to the running features of ultra supercritical once-through boiler, the article proposes a multivariable decoupling and internal model control method.
本文针对超超临界直流锅炉运行特性，提出了一种多变量解耦内模控制方法。
The author analyses the water wall leakages on two 300mw once-through boilers in Yaomen power plant. The leakage is due to transverse cracks on water wall tubes.
本文对姚孟电厂两台30万千瓦直流锅炉水冷壁管发生横向裂纹漏泄的问题进行了分析。
This paper introduces the coordinated control system of a 300mw unit with once - through boiler designed by unidirectional compensation method.
本文介绍了用单向补偿法设计的300MW直流锅炉单元机组协调控制系统。
A mathematical model is developed for the system made up of the furnace and its heating surfaces of an once-through boiler in the paper.
本文对直流锅炉炉膛及其受热面组成的系统建立了数学模型。
A mathematical model is developed for the system made up of the furnace and its heating surfaces of an once-through boiler in the paper.
本文对直流锅炉炉膛及其受热面组成的系统建立了数学模型。
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