表示的

It solves the problem that the time of solving a problem is the power function of the number of rules. Usually, it is difficult to intellectualize a hydraulic component CAD softerware.

提出了与通常知识表示方法"如果-那么"不同的改进型知识表示方法，即："大前提-如果-那么"的知识表示方法，从而解决了求解问题的时间与规则数成指数型增长的问题。

In a scatter diagram, when the dots are distributed roughly along an ascending tendency, there is a positive correlation between the two sets of data. On the contrary, when the dots are distributed rough along a descending tendency, there is a negative correlation. However, when the dots scatter irregularly without a pattern, there is no obvious correlation.

在散点图中，如果点的分布大致上是由左下方至右上方，图像表示两组数据间有一个正相关关系；如果点的分布大致上是由左上方至右下方，图像表示两组数据间有一个负相关关系；如果点的分布大致上是不规则/凌乱地分布，图像表示两组数据间没有一个明显的关系。

Dr. Tilson identified several barriers to screening in private practice."One barrier is actually parent refusal," she told Medscape."Some parents don't want to acknowledge that their child is overweight or they aren't interested in any lifestyle interventions." She also cited time pressure on physicians."The screening tool we have put together is to make as easy as possible in a busy clinic," Dr. Tilson said.

Tilson医师认为在筛选时有一些障碍，她向Medscape表示，其中一个障碍是父母拒绝；有些父母不愿承认他们的孩子是过胖的，并且对於生活型态介入没有兴趣；Tilson医师表示，她也表示医师有时间上的压力；这项筛选工具清单使得筛选可以在繁忙的诊间中进行。

Assuming that the restoring force is the exponential function of the displacement and that the non-linearity is weak, a direct expression is adopted instead of Bouc-Wen differential model. Furthermore, a power series expression by the polynomial of the displacement is educed using Thaler's expandedness.

文中提出采用直接表示形式代替Bouc-Wen的微分模型，在弱非线性情况下，假定滞回恢复力可以表示为相对变形位移的指数形式，并进一步用泰勒展开的方法表示为简单的多项式形式。

The main contributions are as follows:(1) The decoherence suppression of N level Markovian systems is investigatedby the optimal control in the coherence vector representation. The N level Markoviansystem can be described by the master equation, and possesses a standard bilinear formin the coherence vector representation.

本论文利用密度矩阵相干向量表示研究了退相干效应的抑制和相应的纠缠控制问题，论文主要工作包括：(1)在密度矩阵相干向量表示下，利用最优控制研究N能级Markov系统的退相干抑制问题。N能级Markov系统可以用主方程模型描述，在相干向量表示下具有标准的双线性形式。

Wherein X is an oxygen atom or a sulfur atom; C*, C** and C*** are asymmetric carbons; R 1 , R 2 , R 4 , R 5 , R 8 , R 9 and R 10 are each a lower alkyl group optionally having substituent and the like, or R 4 and R 5 and the like in combination optionally form a homocyclic ring optionally having substituent and the like; R 3 is an aryl group optionally having substituent and the like; R 6 and R 7 are each a hydrogen atom and the like; Nu is -CR 16 (COR 17 )(COR 18 ) wherein R 16 , R 17 and R 18 are each a lower alkyl group optionally having substituent and the like, and the like; and EWG is an electron withdrawing group.

通式中，X代表氧或硫；C *、C **和C ***分别表示不对称碳；R 1 、R 2 、R 4 、R 5 、R 8 、R 9 和R 10 分别代表任选取代的低级烷基等，条件是例如R 4 和R 5 可以相互结合形成任选取代的同素环等；R 3 代表任选取代的芳基等；R 6 和R 7 分别代表氢原子等；Nu表示-CR 16 (COR 17 )(COR 18 )(其中R 16 、R 17 和R 18 分别代表任选取代的低级烷基等)等；并且EWG表示吸电子基团。

There are a lot of investigations on arithmetic functions: and , where is Euler totient function and o is the sum of divisors of n.

设φ表示n的欧拉函数，σ表示n的所有正因子和，ω表示n的不同素因子的个数。

There has been a lot of investigations on arithmetic functions σ and φ,where φ is Euler totient function and σ is the sum of divisors of n.

设φ表示n的欧拉函数，σ表示n的所有正因子和，ω表示n的不同素因子的个数。

And what does AD stand for?---Well, AD is the abbreviation for the Latin term Anno Domini, which means in the year of our Lord, so AD actually marks the birth of Jesus.---What about the time before Jesus was born?---Well, we would use BC, which stands for Before Christ.

I see。今年是2009年，讲得明确一点的就是AD 2009，AD表示Anno Domini这是个拉丁文的字表示西元，而西元前要用BC，也就是Before Christ，AD通常会放在年份的前面，BC要放在年份的后面，另外如果要来表示是第几世纪我们要用序数，前面要用定冠词，所以并不是21 century而是the 21st century

Paraphrase: It was an evening just as normal as other evenings when a car coming in the other direction was no longer manageable, broke through the guard rail and hit two other cars before hitting violently against his car front to front.

这是一个含有 when 引导的定语从句的复合句。句中 no 放在一个形容词的比较级前强调某事物的程度、大小或范围，有时用来表示惊讶、羡慕等情绪。no+比较级+than 结构表示&不比…更&，强调两者都不行。而 not +比较级+than 结构则表示&不如&。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！