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This method selects two parameters, energy and variance, as the characteristic parameter of trolley track, and successfully in extracts the feature frequency belt of trolley track vibration. Furthermore, this technology is applied to practical engineering programs and has good veracity and reliability.2. According to the research of this thesis on the trolley tracks\' present data, the status classification of trolley track with normal distribution is presented. This method divides trolley tracks\' situations into five parts and perfects the classifying method of trolley tracks\' mechanical situation.

具体工作如下;1、将小波包分析方法运用到岸小车轨道振动信号的分析中,选取能(来源:A65BC0f论c0文网www.abclunwen.com)量与方差作为轨道的振动特征参数,有效提取出铰点部位与非铰点部位的振动特征频段。2、将正态分布原理引入到岸小车轨道铰点机械性能状态的划分之中,并用最大熵概率分布加以验证,准确地反映了实际情况,并定义了正态分布诊断准则的状态分级评价的原则和临界点,方便和简化了状态判断的决策过程。

We also hired a Senior Engineer of Railways and professional managers, inspectors, and Bao-Bridge, Bridge Hill set up a speed turnouts fittings supply agreement, developed over 170 kinds of polymer materials specifications for new products, so far my plants have produced railway signal insulation, a variety of products line up more than 560 kinds of products and services at all Railway Bureau Electricity Services Section, Public Works Section, Coal Mining Bureau and Taiwan, was the vast numbers of users.

我们还聘请了铁道部高级工程师及专业管理人员、检查人员,并与宝、山建立了提速道岔配件供货协议,开发了170多种规格的高分子材料新产品,至今我厂已生产的铁路信号绝缘、各种线类产品达560余种,产品服务于各铁路局电务段、工务段、煤炭矿务局及台湾等地,身受广大用户好评。

Because his wife went cross a bridge everyday, the rice noodle made by this way was named as Cross-bridge rice noodle.

由于其妻每天送饭要过,所以,此米线作法流传开后,人们就将它命名为过米线。

The next thing worth mentioning is the stuff. There are two kinds of rice noodle, the proper kind for Cross-bridge rice noodle is the slim one, which is good at keeping the flavor of valuable soup.

下面再说说配料,过米线自然少不了米线,过米线一般选用干浆米线,因为米线要在汤中烫熟了吃,如果用酸浆米线时间烫长了米线的酸味就会溢出来破坏汤的味道。

The right orders are as following: firstly, put the meat slice into the soup, then the vegetable, the last one rice noodle. Minutes later, a hot colorful and delicious Cross-bridge rice noodle is ready

过几分钟,过米线的汤便会将这些生料烫熟,这时一碗营养丰富,黄白相间,香飘四溢的过米线就可以吃了。

The Tongmai bridge The over 200-meter Tongmai bridge was made of steel,with wooded board as its deck.

4《通麦大》通麦大是一座长约200米的钢丝拉很窄,面用木板搭成。

The research proves the ameliorate of technical measure, we can bring to bear pre-stress in concreted floor deck to avoid cracks.

研究表明通过技术措施的改进,可以对混凝土面板施加一定的预应力,从而避免面板混凝土因受拉而出现裂缝。

In the paper,the equations of motion for the vehicle_bridge_MTMD system are presented and the effectiveness of suppressing the transverse vibration of the deck steel plate girder bridge with multiple tuned mass dampers is investigated by the field test and simulated calculation.

本文建立了车--MTMD系统振动方程,对利用多重调频质量阻尼器抑制铁路上承钢板梁横向振动的效果进行了模拟计算和现场试验。

Based on qualitative analysis and comparison of several options for suppressing transverse vibration on deck type steel plate girder of railway bridge,conclusions are made as follows:with static reinforcing,the vibration amplitude can be suppressed to some extent,but quasi-resonance of the bridge can not be avoided,moreover,the construction is inconvenient and costly.

通过对目前抑制铁路上承式钢板梁横向振动的几种方案进行定性的分析和比较,认为:静力加固方案可以使梁振幅有所减小,但不能避免准共振现象的发生,而且工程造价较高,施工也不方便;两连接方案减振效果明显(减振率近50%),比较经济也比较方便,但同样不能避免准共振现象的发生;动力减振方案可以有效的抑制梁的准共振现象(现场试验中减振率达51.83%),而且工程造价较低,施工简单、方便。

Proofing: automatic generation of laser cutter mold data, setup and selection of rules on bridging, setup of arbitrary bridging, sharing of data of automatic machetes, respective control over production, cut, press and drawing of short planks and direct proofing.

打样:激光刀模数据的自动生成,接规则的设定与选择,任意接的设定,自动弯刀机数据的共享,短板生产、切、压、画分别控制,直接打样。

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推荐网络例句

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。