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The thesis adduces a discrete adaptive sliding mode algorithm for nonlinear discrete uncertain systems, and use adaptive laws to estimate uncertainty of the algorithm. So it largely reduces the priori information of the systems and become a simple easy method.

本文针对非线性离散不确定系统的变结构控制，提出了一种离散自适应滑模控制方法，利用自适应率对算法的不确定部分进行了估计，从而减少了先验知识，设计简单，容易实现。

Two tobacco F1 hybrids,F2s,backcrosses B1s and B2s and their parents P1 and P2 were used to estimate the gene effects for 7 agronomic and 4 quality characters.

利用红花大金元×青梗，红花大金元×中烟14号P1、P2、F1、F2、B1、B2 6个世代资料对7个农艺性状和4个品质性状进行了基因效应分析。

Buckles estimate that family background accounts for up to 50% of the differences in education and earnings.

他和巴克尔斯估计，对于个人间教育程度和收入差异，家庭背景因素所占的比例最多为50%。

He and Ms. Buckles estimate that family background accounts for up to 50% of the differences in education and earnings.

他和巴克尔斯估计，对于个人间教育程度和收入差异，家庭背景因素所占的比例最多为50%。

He and Ms. Buckles estimate that family background accounts for up to 50% of the differences in education and earnings.

他和巴克尔斯估计，对于个人间教育程度和收进差异，家庭背景因素所占的比例最多为50%。

Moreover, for a system congaing thousands of nodes, it is extremely difficult to estimate the system state quickly.

另外，在一个包含数千个节点的系统中，要以直观快速的方式评估系统状态是非常困难的。

For alternative radio receivers the quality may be an error rate estimate of a demodulated signal.

另一无线电接收机的质量是解调信号的误码率估值。

Some experts estimate that China is currently at least 12 trillion yuan in private capital to be idle, and there is 150 billion yuan in Wenzhou private funds, such as cage-like encaged animals restless, looking for investment in export.

一些专家估计，中国目前至少有12万亿元人民币，私人资本的闲置，而且一千五点零零零亿元温州私人资金，如笼状encaged动物不安，寻找投资出口。

It is needed to estimate water resourse supply and demand in the target year in urban planning. However, the conventional technique extrapolates historic data under hyposized senarios that uncertainties will lead to unreliable planning schemes. Also various uncertainties during the implematation can influence the characteristics of risk for water resource carrying capacity in the target year.

估算目标年水资源的供给和需求是城市规划编制的内容之一，通常方法是基于特定情景假设下的历史信息外推，但这具有突出的不确定性；规划在实施过程中也将面临各类不确定因素的干扰，从而改变目标年水资源承载力的风险水平。

I estimate this engine test stand to be adequate for engine sizes from about G through L. I think I may make heftier side spars when I fire my first L engine though, just to be safe.

据我估计，这发动机试验的立场是足够的发动机大小从大约克，通过研究，我想我可能会作出heftier方spars当我的消防我第一次升发动机，但为了安全起见。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了