难控制的

Ball and Rose Routine: A white rose is plucked from it抯 stem and turns into a white billiard ball, which vanishes and is reproduced as a silk scarf is waved in front of it. There are several more vanishes and reappearances, then the ball changes color. The new red ball now becomes white then red and continues to change several more times.

如果你还没有遇到过有人能控制你的心灵时候，你将会觉得这是不可思议的，现在Derren Brown将会现你证明这个超能力，控制你的想法，这里，他将会在第四频道的一个小节目中证明如何让你压抑住的兴趣表现出来，你放心，这不纯在手法上的问题，因为那是很难在那么多的观中注视中不出现麻烦的。

Although the Control Panel is a good tool, it can sometimes be difficult to use.

虽然控制面板是一个很好的工具，它有时很难使用。

Some of these undertakings stick in the craw of an army with an understandable instinct for control freakery.

我们知道美军天生具有的强烈控制欲，有些承诺让他们很难接受。

Unfortunately, a good skills too early, but from now on will look at the skills丐帮only ranked fourth, and other door-to-door now had their own strong indeed significantly weaker, the beggar is a pseudo-control door-to-door, with hidden weapon dabbler still, it is estimated that Pa has seen a knife, he switched to the door, and prices are not good short-term, medium-difficult, and the latter may be the rise of - Oh, sigh.

丐帮：停牌。45技能不错可惜出得太早了，不过从现在来看丐帮的技能也就只能排第四，其他门派如今变强了自己确实显弱了，乞丐是个伪控制门派，有了暗器也还是半吊子，估计霸刀也看出端倪，改投他门了，短期行情不妙，中期难做，后期可能会崛起--唉，一声叹息。

This changes how easy it is to hold the car in a straight line and to maintain drifts.

这个值决定控制车辆保持直线并漂移的难易程度。

This is to say to do hard business easily, need ego control.

这是说起来容易做起来难的事情，需要自我控制。

From the view of design, there are mainly three solutions to depress this vibration: the first way is to enhance the collectivity stiffness of platform, it will make the structures heaver, that is to say, it can't meet the economic demand;the second way is to implement active control, however, it is difficult to be carry into execution and unable to decrease the expensive cost.

降低平台的冰致振动响应大致有三个途径：一是提高平台结构的总体刚度，这样做显然会使平台加重而不满足经济性要求；二是对平台结构的冰致振动进行主动控制，但是此种方案在恶劣的海洋环境中很难实施并且不会降低海洋平台的总体成本；三是对平台结构进行减振和隔振控制，相对来说，此种方案是行之有效并且经济实用的。

In the system of high precision and low speed, Because of the existence of the nonlinear friction, the static and dynamic performance of the servo system is very bad, such as stick slip, hunting, large error and so on, Because the traditional control of PID is hard to solve the nonlinear problem of the servo system, so this paper begins to introduce a new control method which is named adaptive fuzzy PID, It utilizes the rule of the fuzzy control to adjust the parameter of proportion, integral and differential on line, So this control method has some intelligence to improve the static and dynamic performance of the servo system.

在高精度、超低速伺服系统中，由于非线性摩擦环节的存在，使系统的动态及静态性能受到很大程度的影响，主要表现为低速时出现爬行现象，稳态时有较大的静差或出现极限环振荡；由于传统的PID 控制很难解决伺服系统中的非线性问题，因而不能适用于高精度、超低速伺服系统；本文通过引入模糊自适应整定PID控制，利用模糊规则在线调整比例、积分、微分环节，使系统具有一定的智能，从而非常明显的改善伺服系统的静态及动态性能。

Ii The performance assessment benchmark of model predictive control system is studied. The Cumulative Sum chart of residual is put forward to monitor the performance of model predictive control system online. The method has solved the problem that the- chart can hardly detect the change of performance index with small change or severe autocorrelation.

2介绍了模型预测控制系统的性能评价准则，提出了利用残差的累积和图在线监视模型预测控制系统性能指标的方法，解决了传统的-图很难在线检测出变化不大或存在严重自相关现象的性能指标变化的问题。

So it is difficult to control the temperature gradient and the cooling parameters in forging process.

但在具体的工艺实施过程中，对大锻件在JTS法锻造中的温度梯度控制，钢锭外表面的冷却控制，以及温度梯度对内部的应力应变及组织的影响缺乏足够的认识，所以很难掌握其规律。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。