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It was confirmed that the 〓-CCT of phenyl isopropyl ether is formed on the benzene ring rather thanon the etheroxy bond. The 〓-CCT complex is not strong enough to induce charge transfer and converts to CTC because the isopropyl group is separated from the benzene ring by oxygen atom. As a result,〓 can not transfer from isopropyl to form radical in cage. Therefore phenyl isopropyl ether is difficult to undergo dark oxidation.

这是由于苯基异丙醚和异丙醚形成O〓-CCT的部位不同，苯基异丙醚的O〓-CCT形成在苯环上，与异丙基相隔一个氧原子，不足以诱发异丙基电荷转移而转化为CTC，也就不能有氢质子转移和笼式自由基的形成，因此难于发生暗氧化反应。

Qiu animal hair simulation techniques are cooked at high temperatures formed, non-toxic tasteless,áídifficult to Decoloration linting, product modeling different expression million to deceptive and pure hand-made; Simulation Products has high ornamental and collectible value If friends and relatives for the gifts of my colleagues, it is the best choice; I plant simulation fur animal hair products are mainly based on domestic rabbit and goat fur remaining, fully reflects the nature of our factory to protect the efficient use of resources and sense of responsibility.

裘毛仿真动物是经过高温技术熟制而成，无毒无味，柔软光滑，不易脱色掉毛，产品造型各异，神态万千，能以假乱真且纯手工制作；仿真产品有很高的观赏和收藏价值，若用于赠送亲友同事，实属最佳选择；我厂的裘毛仿真动物产品主要取材于家养兔子和山羊的剩余皮毛，充分体现了我厂保护大自然与有效利用资源的责任心。

Intermediate heat cycle can be reduced because the tail blade turbine steam humidity and reduce steam consumption. improve plant efficiency and thermal cycling in the unit were popular, however, Reheat temperature control system with nonlinear their targets, inertia, the characteristics of delay, Power Plant to become more difficult to control the system-paper fuzzy control theory and fuzzy logic, reconsidered conventional PID control law on the basis of the study and intelligent fuzzy PID control, the 300MW units Reheat fuzzy control process using adaptive PID control, the introduction of load feedforward. design configuration, the final design complex adaptive feedforward cascade control system and MATLAB for simulation, simulation results show that the response speed, Robust control and accuracy, the system has considerable advantages Unit to improve the efficiency and reduce the operational workload.

中间再热循环技术因其可以降低汽轮机尾部叶片的蒸汽湿度和降低汽耗，提高电厂的热循环效率而在单元机组中被普遍采用，然而，再热气温控制系统因其对象具有非线性，大惯性，大迟延等特点，成为火电厂较难控制的系统之－，本文运用模糊控制理论和模糊逻辑推理，在重新认识常规PID控制规律的基础上探讨了PID与智能模糊控制相结合，在电厂300MW发电机组再热模糊控制过程中使用自适应PID控制，引入负荷前馈，设计组态，最终设计出自适应复合型前馈串级控制系统，并在MATLAB中进行仿真模拟，仿真结果表明，在响应速度，鲁棒性和控制精度等方面，此系统都具有相当大的优越性，有利于提高机组的效率和减轻运行人员的劳动负荷。

It\'s urgent to save it now. A remarkable phenomenon is that though shadow play was out in the cold in mainland, it is popular abroad. A handful of famous entertainers and troupes are often invited to perform abroad. Difficult to find successor in mainland, they recruited foreign prentices. Some foreign experts try to transform our history documents into their own academic results by purchasing our cultural inheritance with loads of money.

一个值得注意的现象是，虽然皮影在本土遭遇冷遇，却并不妨碍它们&走出去&：少数著名艺人和班社经常被邀请出国演出，在当地找不到传人的皮影艺人却招收了洋弟子；一些国外专家组成的考察团也正在把我们的的历史资料转化为他们的学术成果，用重金收购我们祖先留下的家底，古老的文化资源正在严重流失。

Some foods to avoid are listed below: long celery stalks (the "strings" in celery are difficult to digest); cut them into small pieces iceberg lettuce (high in nitrates, no nutritional value) any shelled nuts or seeds (guinea pigs can choke on the shell fragments) raw beans rhubarb There is some confusion as to whether or not potato peelings are good or bad: some books indicate that they are poisonous to guinea pigs, while others say that they are okay in small amounts.

以下列出的是应避免的一些食物：长芹菜茎杆(芹菜里的&纤维&是很难消化的)，卷心莴苣(硝酸盐含量高，没有营养价值)，任何坚硬的坚果或者种子，不成熟的豆子，大黄，我有些疑惑究竟土豆皮是好还是坏：一些书表明它们对于豚鼠来说是有毒的，而另一些人说，少量的食用对猪猪还好。

Especially is studying independently with the teaching domain application, as a result of present's some curricula, like the automatic part, the electrical machinery dragging principle, curricula and so on automatic control principle very difficult to understand abstractly, is unable to demonstrate to schoolmate, this regarding, regardless of being the learner or the pedagogues is a question.

尤其是在自学与教学领域的应用，由于现在的一些课程，如自动元件，电机拖动原理，自动控制原理等课程十分的难懂抽象，无法向同学演示，这对于无论是学习者还是教育者都是个问题。

Baidu said it would be difficult to lower further its cost of traffic acquisition the portion of revenues it needs to spend in order to gain new users after it came down from 15.3 per cent a year ago to 13.2 per cent in the first quarter in the face of competition from smaller rivals.

百度表示，其流量获得成本（即为了赢得新用户而需要支出的营收比例）已从去年同期的15.3%，降至今年首季的13.2%。但面对较小对手的竞争，要进一步降低这项成本会有难度。

It also becomes more difficult to model and simulate power grid. Traditional"Quasi-stationary"phase models can't be used for studying electromagnetic transient phenomena; on the other hand, the EMTP models can be used to analyze the electromagnetic transient accurately, but for the limitation of the step size, it can't be used to simulate the large network with a high speed.

这对电力系统的建模和仿真提出了更高的要求，传统的机电暂态模型由于建立在&准稳态&假设基础之上，因此不能用来仿真变化迅速的电磁暂态过程；而电磁暂态模型，虽然能准确反映电磁暂态过程，但由于仿真步长很小，仿真速度受到限制，不适合用来仿真大型电力系统。

With the stability of the fast development of onal economy annatid overall peaceful environment of world, our country has already said good-bye to shortage economy, the people's demand file time is promoted progressively , the price is influenced and weakened, the small and medium-sized enterprises without characteristic are very difficult to survive in the competition of the low level, this requires small and medium-sized enterprises to re-recognize one's own comparative advantage according to one's own characteristic, make the suitable marketing strategy in proper order.

内容提要：随着国民经济的快速发展和世界总体和平环境的稳定，我国已告别短缺经济，人民的需求档次逐步提升，价格影响减弱，没有特色的中小企业在低层次的竞争中很难继续生存，这就要求中小企业必须根据自身特点重新认识自己的比较优势，以次制定合适的营销战略。

It will prove difficult to distinguish between losses from the excessive rains and drought, but they are significant, he said.In addition, Yorinori said that certain fungicides being used to combat the fungus have proved inefficient at killing all the spores during heavy rust attacks, leading to damage even in well-sprayed areas.

将大雨和干旱造成的损失区分出来将会有一定难度，但这种损失是很明显的，他说，另外，约里诺里还说，实践证明，有些用于对付锈菌的杀菌剂在锈菌大规模暴发时不能有效地杀灭所有的孢子，因此，有些地区即使喷洒了足量的杀菌剂也会遭到损失。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷