桥

The micro vehicle rear axle of car main gear box noise question became the worker matter of concern. In this paper, the micro vehicle rear axle of car main gear box noise performance present situation and the traditional assessment method are discussed, and the general BP neural network and the Levenberg-Marguardt algorithm are introduced in detail. Improves the BP neural network using the LM algorithm, at present is trains the neural network the quickest algorithm.

微车后桥主减速器噪声问题成为工作者所关注的问题，本文介绍了后桥主减速器噪声性能现状及传统评价方法，阐述了BP神经网络的一般算法，并详细介绍了Levenberg-Marguardt算法，利用LM算法来改进BP神经网络，目前是训练神经网络的最快算法。

Automobile parts such as gearbox,front bridge, back bridge,transmission shaft and wiper,etc.can be produced.

可生产汽车变速箱、前桥、后桥、传动轴、刮水器等零部件和车身涂复5.8万辆的配套零部件。

The process of zero adjusting is complex and time-consuming in traditional balance bridge measurement.

引言按照输出测量方式，电桥可分为不平衡桥式电路与平衡桥式电路。

Part three " the Bridge Between Two Cultures " elaborates on how cultural misunderstanding results in an unbalanced world, why understanding is a bridge to balance and harmony and how cultural integration and cultural fusion result in a balanced world.

第三部分"文化之桥"分析了文化误读怎样造成了一个失衡的世界，为什么理解是通往平衡与和谐之桥以及文化交融和融合怎样恢复平衡世界。

PulteneyBridge, meanwhile, is one of the few in the world to be lined with shops, offering everything from curios to clothes.

而普特利桥则是世界上少数几座商业桥梁之一，桥上两侧的小商店内应有尽有，从古董到服装均有出售。

The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制电路采用相移控制方式，综合了PWM控制和软开关技术的优点，在大范围内实现PWM控制，而在功率器件换流期间实现软开关换流，其中超前桥臂利用变压器的漏感，实现了零电压开关，滞后桥臂利用隔直电容，实现了零电流开关，并且整个变换电路能在（5A~250A）的范围内实现软开关工作条件，满足弧焊电源负载变化大的特点。

Under the third arch of the Pont de Jena, the new stone with which, the two years previously, the mining aperture made by blucher to blow up the bridge had been stopped up, was still recognizable on account of its whiteness

在耶拿桥的第三桥洞下，人们还可以从颜色的洁白上认出那块用来填塞布吕歇尔在两年前，为了炸桥而凿的火药眼的新石头。

Under the third arch of the Pont de Jena, the new stone with which, the two years previously, the mining aperture made by Blucher to blow up the bridge had been stopped up, was still recognizable on account of its whiteness.

我们刚才所用的这一词组"竟成了……"是被罗叶－柯拉尔认作新词的。在耶拿桥的第三桥洞下，人们还可以从颜色的洁白上认出那块用来填塞布吕歇尔⑥在两年前，为了炸桥而凿的火药眼的新石头。

In the dissertation, principles of phase-shifted full-bridge ZVS PWM and push-pull boost converter are analyzed; Reason of duty ratio dropping out and solution measures are introduced at the same time; The magnetic biasing and ZVS methods of Lagging brachium are studied detailedly in the bidirectional DC converters.

在本文中首先分析了移相全桥式ZVS-PWM功率变换和推挽式DC／DC Boost功率变换的工作原理，分析了移相全桥式滞后臂实现零电压关断困难以及占空比丢失的原因以及采取相应的改善措施，分析了双向DC／DC变换器产生偏磁的原因以及采取抗偏磁的措施。

The simulation model of three-phase bridge controlled rectifier circuit is constructed based on Matlab/Simulink.

应用Matlab的可视化仿真工具Simulink建立了三相桥式全控整流电路的仿真模型，在此基础上，对三相桥式全控整流电路的输出电压与控制角以及负载特性的关系进行了详细的仿真分析。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。