不变的

For the all classes of dies, if we analyse the fluctuate, tendency of increase and decrease and law which appeared in the die's whole life, we will find that the master of the error are changeless; the error that because the abrade of the cutter and impression will be as the cutter grinding times increased at the same time. And that will cause the error oversize gradually; and also have another part error are unconventional , unforeseen.

对各类冲模冲件误差在冲模整个寿命中出现的波动、增减趋向及规律等进行全面分析便可发现：冲件误差的主导部分是不变的；因刃口或型腔的自然磨损而出现的误差增量随冲模刃磨冲数增加而使这部分误差逐渐加大；还有部分误差的增量是非常规的、不可预见的。

Abide by the law and behave oneself , changeless spiritualism run to void, original Africa jungle, near to the most original human aspiration, the brown dirt, the continuous hills, galloped animals, mystery of caravan blowing to face, bring up the legend scenery, what enter into our sight is a profound and memorable Africa picture.

循规蹈矩、千层不变的灵性奔向空旷、原始的非洲丛林，接近人类最纯朴的渴望，褐黄的泥土、绵延的群山、奔腾的兽群，大漠朴面的神秘，练就了千古传奇的风景。跃入我们的视线的是深刻难忘的非洲映画。

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。

In the first part, the concepts of the completely normal spaces and strong completely normal spaces in L-topological spaces are defined, which are the generalization of the completely normal spaces in general topological spaces. They are some good properties such as hereditary, weakly homeomorphism invariant properties, good L-extension, but they arent producible in general.

第一部分的主要内容如下：第一部分这一部分是将一般拓扑学的完全正规分离性的概念推广到了L-拓扑空间，给出了L-拓扑空间的完全正规分离性和强完全正规分离性的定义并讨论了它们的若干性质，比如，它们都是可遗传的，弱同胚不变的，"Lowen意义下好的推广"等。

The article researched new type thyristor trigger that adapts the frequency of input power automatically, then analyzed the designing ways and process of frequency-tracked trigger in detail, yet validated capability of trigger through experiment and actual appliance in project, we also build up the fault-diagnosed and disposal cell of hypogyny machine with SIMATIC S7-200 PLC, besides, programmed and debugged to realize various monitor and diagnose; more, smart design make protection function more perfect and action more sensitive, so it can realize perfect swift and reliable protection under fault condition.

本文重点研究了以频压变换技术为核心的新型频率跟踪触发器，详细分析了频率跟踪触发器的设计思路和设计过程，实现了在同一移相控制电压下，当同步电压频率大范围变化时触发器输出触发脉冲的电角度保持不变的目的，满足了项目对同步电压频率变化时晶闸管准确触发的要求；并通过实验和工程实际应用验证了触发器的性能。设计了基于SIMATIC S7-200 PLC软硬件的故障诊断系统并调试了各项监控、诊断功能；实现故障条件下准确、迅速及可靠的保护。

Demand is the ability and willingness to buy specific quantities of a good at alternative prices in a given time period, ceteris paribus.

需求是在既定的时期内，在其他条件不变的条件下，在可供选择的价格水平下，人们愿意并能够购买的商品的特定数量。

Demand is the ability and willingness to buy specific quantitiesof a good at alternative prices in a given time period, ceteris paribus.

需求是在既定的时期内，在其他条件不变的条件下，在可供选择的价格水平下，人们愿意并能够购买的商品的特定数量。

Supply is the ability and willingness to sell specific quantities of a good at alternative prices in a given time period, ceteris paribus.

供给是指在其他因素不变的情况下，在既定的时期内，在可选择的价格水平下，卖者愿意并且能够卖出的商品的特定数量。

Plato's mathematical entity, Aristotle's essential entity, René Descartes' atom for his viewpoint of mechanics, Ostwald's energy, and Bernard's internal milieu were all the explanations for the eternal entity.

柏拉图的&数学实体&、亚里士多德的&基质&、笛卡尔力学自然观的&原子&、奥斯特瓦尔德的&能量&、伯纳德的&内部环境&，都是对这种&不变的实体&的诠释。

In my novel, My Name is Red, when I wrote about the old Persian miniaturists who had drawn the same horse with the same passion for so many years, memorising each stroke, that they could recreate that beautiful horse even with their eyes closed, I knew I was talking about the writing profession, and my own life.

在我的小说《我的名字叫红》中，当我写到那个老波斯画家以一种不变的热情长年画着一模一样的马，一笔一画都能倒背如流，闭着眼睛也能画出那些漂亮的骏马。我知道我在谈论写作的职业化，和我自己的生活。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。