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boiler is a important power equipment,the require is to provide qualified vapour,let the amount of vapour maked by boiler suit for the load.because of this,every main parameter in the process of the product should be strict controlled.this paper is introduced same main control system in the process of boiler control、concentrate and disperse control system 、the characteristic and the develop of the MCGS compose status software.integrate with the technique of the boiler, discuss the single momentum, double momentum, three momentum boiler control system distinguishly.we think in the process of micro boiler control, three momentum control is the best choice,and has been well implemented in the water level mediation.further more,use the concentrate and disperse control and MCGS compose statue sofeware can achieve the control of the boiler,and can reach a fine effect..

锅炉是一个重要的动力设备，其要求是供给合格的蒸汽，使锅炉发气量适合负荷的需要。为此，生产过程的各个主要参数必须严格控制。本设计了研究锅炉控制过程的几个主要控制系统，以及集散控制系统和MCGS组态软件的特点和发展状况。结合锅炉的工艺情况，针对单冲量、双冲量、三冲量锅炉控制系统，对它们存在的利弊做出了比较和分析。结合生产实践，对三冲量的算法进行比较，认为在小型锅炉控制过程中，三冲量控制是最好的选择，并在水位调节中得到很好的应用。

ReduceMain fractionation tower,s press drop can enhance inlet pressure of compressor.At the condition of compress ratio is invariable,it can improve system pressure、increase NTS of stabilization tower、reduce stabilize gasoline C4 ratio、improve system absorbent ability.Generic design can hardly reach the best NTS of absorber,so adding absorber,NTS can obviously increase effect so absorb. Because adding absorber'NTS can reduce system dependence on other factors,and it can not lead to the increase of the energy,so it is the best economic method of improving absorb operation effect. For desorber,double feed stream is a economical means but it need adding the NTS.

降低主分馏塔的压降，可以提高压缩机的入口压力，在压缩比不变的情况下提高系统压力；增加稳定塔理论板数，可以降低稳定汽油中C4的含量，系统的吸收效果改善；一般的设计和吸收塔的最佳板数相距较大，所以改造吸收塔的理论板数，它对提高吸收效果往往最显著，又因为改善吸收塔的理论板数会降低系统对其它因素的依赖程度，而且改善它并不增加能耗，所以改造它对提高吸收效果又是最经济的手段之一；对于解吸塔来说，双股进料的工艺很有经济效益，但它需要增加理论板数来实现。

Dt. 30:11 Now what I am commanding you today is not too difficult for you or beyond your reach .

申30：11 我今日所吩咐你的诫命、不是你难行的、也不是离你远的。

Aiming at the reqirements, it is difficult for traditional EDM to reach.

针对以上复杂零件加工的特殊要求，仅仅依靠传统的电火花加工方法很难实现。

And for this, we need to start transforming our egoism before additional blows reach us.

在这之前，我们需要慢慢消灭自我主义，以防止别的利己思想再次占据我们的心。

"Ejaculatory impotence (inability to reach orgasm, sometimes with an erection maintained for a long time) nearly always has an emotional cause."

不能射精的患者能勃起，但在高潮时却无法射精，他们能够维持长时间的勃起，这种形态的性无能几乎全是心理因素所导致。

Allow sufficient time for the reaction to reach completion, and titrate the unconsumed Reagent with standardized Water Solution to the electrometric or visual endpoint.

给与足够的时间达到反应完全，用标准水溶液去滴定未反应的的卡尔试剂，以永停法或视觉观察终点。

Concentrations of heavy metals in the suspended matter and sediment are not obviously affected by elutriation of stream and dilution of tributary stream. This feacture does not change even in the distant reach downstream. Therefore, the suspended matter and sediment are the potential source of heavy metal contamination to the waters for industry and agriculture use.

河流的地质、水文特征决定了河流悬浮物和沉积物成为河流中重金属搬运迁移的主要载体，在几十公里的下游水域中悬浮物和沉积物中重金属含量没有受到其它支流清澈水体的稀释，成为下游工、农业用水的潜在污染源。

An investment company can be an annual output of 3,000 tons of enamelled round aluminum wire, Copper clad aluminum wire 1000 tons and 6000 tons bare Wire, the company eventually reach an annual output of 5000 tons capacity can be enamelled round aluminum wire, Copper clad aluminum wire 5000 tons and 10,000 tons Bare Wire larger wire for domestic manufacturers.

公司一期投资可年产3000吨漆包圆铝线、1000吨铜包铝线和6000吨裸铝丝，公司最终达产可年产5000吨漆包圆铝线、5000吨铜包铝线和10000吨裸铝丝为国内较大的电磁线制造企业。

However, I was so Enamour'd of this Place, that I spent much of my Time there, for the whole remaining Part of the Month of July; and tho' upon second Thoughts I resolv'd as above, not to remove, yet I built me a little kind of a Bower, and surrounded it at a Distance with a strong Fence, being a double Hedge, as high as I could reach, well stak'd, and fill'd between with Brushwood; and here I lay very secure, sometimes two or three Nights together, always going over it with a Ladder, as before; so that I fancy'd now I had my Country-House, and my Sea-Coast-House: And this Work took me up to the Beginning of August.

第二天，十九日，我带着事先做好的两只小袋子回去装运我的收获物。但是，当我来到葡萄堆前面时，原来饱满完好的葡萄，现在都东一片，西一片被拖散开，有的被践踏得破碎不堪，有的则已吃掉了。眼前的情景一片狼籍。这不禁使我大吃一惊。看来，附近一定有野兽出没；至于什么野兽，当然我无法知道。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。