发生处

The experimental results show the validness of the mechanism analyses.2. According to the generation mechanism of the leak acoustic signal, the characteristics of the leak acoustic signal are investigated. The auto correlation technology is adopted to descript the leak signal characteristics due to the ability to analyze the coherence of time series. A new procedure to identify the leak acoustic signal from the disturbed noises is proposed based on the conjunction of correlation and approximate entropy algorithm.3. The principle and application in leak location of the correlation and the adaptive filter techniques are introduced. The problems of the traditional leak location methods are analyzed.4. In order to establish the leak detection signal model, the leak acoustic propagation characteristics are investigated experimentally.

从泄漏声产生机理出发，分析了管道泄漏处湍流拟序结构与空泡间相互作用的机理，认为在该机理作用下，泄漏声信号产生过程具有&不可重复&的特征；由于相关函数具有分析时间序列拟序结构的能力，且近似熵从统计的角度区别时间过程的复杂性，因此，提出将信号相关分析和近似熵理论相结合的方法，提取泄漏声信号&不可重复&的特征，辨识管道泄漏故障发生；在实际检测现场，由于各种管内和管外固定声源噪声(如阀门噪声、工地施工噪声等)常导致泄漏误判和漏点定位错误，重点分析了管内固定噪声源的产生机理和特征，为复杂干扰环境下的泄漏辨识提供理论支持。

The results indicate: diversion shell can transform the kinetic energy of fluid into pressure energy well, and eliminate the circumferential component of fluid; the inlet incidence angle of vaned diffuser increases at the condition of O.8Q, and it results in flow separation very likely and the hydraulic loss increases; it is nearly non-impact inflow at the condition of 1.2Q, and the velocity distribution is uniform at the inlet of vaned diffuser and flow separation dose not appear.

结果表明：导流壳能很好地将叶轮中流出的流体的动能转化为压能，并消除速度的圆周分量；在0.8Q工况下，空间导叶的进口冲角增大，容易在空间导叶背面产生流动分离，造成水力损失增加；在1.2Q工况下，空间导叶的进口接近无冲击入流，在进口处流速分布较均匀，其内部未发生流动分离现象。

Results Wallerian degeneration in the distal nerve happened at weeks right after cush. Nerve regeneration was seen at 2 weeks.

结果：钳夹后1周损伤处远段神经发生华勒变性，钳夹后2周神经纤维开始再生。

A 答案在文中第二段It began to decline about a hundred years ago, when many girls left home to go into service in town many miles away, and men also left home in increasing number in search of a work, and home was where work was.

意思是它的衰落大约开始于一百年前。那个时候，许多女孩离开家乡去往很远的城镇，从事服务业。越来越多的男人们也离开家乡去寻找工作，并把家安在工作之处。题目问︰什麼时候，乡村生活开始发生巨大的变化？

A 答案在文中第二段 It began to decline about a hundred years ago, when many girls left home to go into service in town many miles away, and men also left home in increasing number in search of a work, and home was where work was.

&意思是它的衰落大约开始于一百年前。那个时候，许多女孩离开家乡去往很远的城镇，从事服务业。越来越多的男人们也离开家乡去寻找工作，并把家安在工作之处。题目问：什么时候，&乡村生活开始发生巨大的变化？

Drying in the drying room can be seasonal, where outside temperature during winter months is not high enough and air-drying would take too long.

在干燥室中干燥可以是季节性的，发生在冬季的月份室外温度不够高，而空气干燥费时太长之处。

Bifurcation or anastomoses of capillaries approximately took place at right angles in a T-shaped pattern and capillaries showed a lot of ring-like compressions.

毛细血管的分叉或吻合大都发生在&T&样的直角处和毛细血管显示有很多环形压缩。

It is curious what a subtle but unmistakable transmutation it makes, both in the body of men and women: the woman more blooming, more subtly rounded, her young angularities softened, and her expression either anxious or triumphant

肉体的爱，使男子身体发生奇异的、微妙的、显然的变化。女子是更艳丽了，更微妙地圆满了，少女时代的粗糙处全消失了，脸上露出渴望的或胜利的情态。

It is curious what a subtle but unmistakable transmutation it makes, both in the body of men and women: the woman more blooming, more subtly rounded, her young angularities soften ed, and her expression either anxious or triumphant

肉体的爱，使男子身体发生奇异的、微妙的、显然的变化。女子是更艳丽了，更微妙地圆满了，少女时代的粗糙处全消失了，脸上露出渴望的或胜利的情态。

His description of what happened approximated to the truth, but he made a few mistakes

他对所发生的事的叙述近于实情，但有几处错误。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。