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For two kinds of servo systems that the output can be directly measured or not directly measured, the direct compensation method and the BP neural network compensation method for backlash nonlinearity were presented. Simulation results for a tank barbette tracking system show that these two kinds of compensation methods can successfully eliminate the influences produced by backlash nonlinearity, and improve the system accuracy.

针对输出直接可测和不直接可测两种伺服系统，提出了间隙非线性的直接补偿法与BP神经网络补偿法，对坦克炮塔跟踪模型进行的计算机仿真表明这两种方法均可成功消除间隙非线性引起的极限环，提高系统精度。

Lily: The Barbican is a huge building with a concert hall, two theatres, three cinemas, two art galleries, a conservatory and a public library.

这个艺术中心是一组庞大的建筑群。其中包括一个音乐厅、两个剧院、三个电影院、两个艺术画廊、一所艺术学院以及一个公共图书馆。

I get on the water-wagon an' save my money for two years - save an' then - But Martin turned away, leaving him to tell it to the barkeeper, until that worthy was called away to furnish drinks to two farmers who, coming in, accepted Martin's invitation.

我的计划是：戒酒，存上两年钱——存好钱就——但是马丁已经走开，让他去对着店老板唠叨，直唠叨到那位人物被叫去拿酒——是两个农民进了门，马丁在请他们喝酒。

The 20S catalytic core of the 26S proteasome has the shape of a barrel made of four rings which are composed of seven differentαsubunitsα_1-α_7 at two outer rings and seven differentβsubunitsβ_1-β_7 at two inner rings at which the catalytic sites locate. Three of theβsubunits contain proteolyses sites, which are sequestered in the hollow interior of the 20S particle. Substrates enter the 20S through a narrow channel formed by theβsubunits, whose N-termini, depending on their conformation, can either obstruct or allow substrate entry and thus function as a gate. This entry channel is narrow and only permits passage of unfolded, linearized polypeptides.

哺乳动物26S蛋白酶体是由一个20S催化颗粒(catalytic particle，CP)和两个19S调节颗粒(regulatory particle，RP)组成的ATP(adenosine-triphosphate，ATP)依赖性蛋白水解酶复合体。20S CP是26S蛋白酶体的催化核心，它是由4个圆环堆叠形成的桶状复合物，其中两侧外环每个环是由α_1-α_7亚基组成，两个内环每个环是由β_1-β_7亚基组成，4个环的中央形成一个狭窄的内腔。2个β内环形成了20S CP的催化中心空腔，其内壁为催化活性位点所在地；外侧α环中心的孔道是底物到达催化中心空腔的通道，一般被α亚基上的N末端所封闭，阻止胞内非目的靶蛋白进入20S CP内被降解破坏。

Across 5,000-odd miles and two weeks, Barrowman and Gill each tell me their love story, and like two guilty men in an interrogation, their fairy-tale versions match up almost perfectly.

JB和Scott分别接受的采访，像两个受审的犯人一样，但他们对自己如童话般邂逅的描述如出一辙

Starting at two Sunday afternoon and grinding until four AM Monday, Gabe "The Babe" Owen and Chris "Dante" Bartram set the stakes at $7,000 for a twelve-ahead set in 10-ball, the Columbus, OH, road player getting the last two from 2005 US Open 9-Ball champ Owen.

开始，在两个星期日下午和研磨，直到4时，周一，盖"贝贝"欧文和克里斯"但丁" bartram设置的利害关系在$ 7000 ，为1 12 -未来订定在10球，哥伦布，哦，道选手获得最后二，从2005年美国网球公开赛9球锦标赛欧文。

Therefore, the basie feature of Zhuangzhou's philosophy is the two-fold-in-one of the living outlook and ecological Outlook,such feature is mainly embodied in : expressing man's free nature by use of large ecological Outlook; the crux of such large ecological outlook is the protection and exploration of man's spirit ecology. This two...

因此，庄子哲学的根本特点便是生存观与生态观的二重合一，这种二重合一主要体现在：用大生态观言说人类的自由本性；这种大生态观的实质是对人类精神生态的保护与开掘；庄子哲学生存观与生态观的二重合一突出体现在《庄子》一书的叙事方式上。

The times given in the tables are accurate to within two or three hours for 25 to 5 BCE, and one or two hours for 4 BCE to 38 CE.

时代给予在该表是准确的，以两个或三个小时，为25日至5 bce ，和一个或两个小时为4 bce至38行政长官。

At least two separate inhibitory actions on 5-HT3A receptors could be identified for propofol, whereas the enhancing action seen for the two related smaller phenol derivatives could no longer be detected. 5-HT-dependent and 5-HT-independent interactions could be distinguished for all three drugs.

异丙酚被证实对5-HT3A 受体至少有两种相互独立的作用，而在两种相关的较小分子的酚类衍生物中所看到的增强作用则不能被检测到。5-HT 依赖和5-HT 非依赖两种相互作用因为这三种药物而著称。

Large numbers of UN staff were reported to be missing, as well as two American and two Australian citizens.

许多联合国的工作人员被报失踪，以及两名美国和澳大利亚公民。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。