查询词典 thunder rod

With prevents thunder colleges and universities develop omnibearing cooperation, is a by prevent thunder expert troop compose 's, at domestic compares early engage in modern prevent thunder theory research, prevent thunder product develop and prevent thunder engineering practical profession prevent thunder company, AAA grade credit enterprise, is China weather academy thunder and lightning protect committee commissary, Zhejiang safe prevent association syndic, Nanjing information engineering university prevent thunder producing study grinds base, possess prevent thunder engineering profession design and construct intelligence.

帮忙修改下，公司的简介---有难度的-敢挑战吗？公司简介杭州易龙电气技术有限公司（杭州易龙防雷科技有限公司）与防雷院校开展全方位合作，是一家由防雷专家团队组成的、在国内较早从事现代防雷理论研究、防雷产品研发和防雷工程实践的专业防雷公司、AAA级信用企业，是中国气象学会雷电防护委员会委员、浙江省安防协会理事、南京信息工程大学防雷产学研基地，具有防雷工程专业设计和施工资质。

According to the plane cross section assumption, configuration of a rod is expressed as a history of the cross section with arc coordinate. A special solution which stands for equilibrium in straight line state is obtained from differential equilibrium equation. Linear perturbation equation is derived and its general solution is obtained in which the integral constants are determined by constrained conditions at two ends of the rod. The condition of existence of non zero solution of the integral constants gives to the Greenhill formula of exact elastic rod model, which shows that the boundary of stable area is a closed curve and of symmetry, and inference of shearable and extensible to stability of the rod is depend on three factors: difference between flexibility of shear and extension of a section of the rod, bending stiffness and the length of the rod.

基于平面截面假定，弹性杆的位形表达为截面的弧坐标历程，根据平衡微分方程得到了两端受力螺旋作用时的直线平衡特解，导出了线性化扰动方程及其通解，积分常数根据两端铰支时的边界条件确定，并根据其存在非零解的条件得到弹性直杆精确模型的Greenhill公式，表明稳定域为一对称的封闭区域，拉/压和剪切对稳定性的影响取决于：拉/压柔度与剪切柔度之差，抗弯刚度和杆长这三个因素

Adopt at present most advanced large-scale SUPER SAP finite element structure analyse procedure to go on numerical value calculation for model of drilling rod, drilling rod whole stress simulation of state that receive show and reflect drilling rod various kinds of stresses under different working states distribute the characteristic clearly, make stress state of drilling rod reach visual, make people able to understand informations of drilling rod of stress status in depth too at the same time, so that the design of the improvement drilling rod constantly is in order to meet the demands of actual project.

采用当前最先进的大型SUPER SAP有限元结构分析程序对钻杆的模型进行了数值计算，得到的钻杆整体应力状态的模拟显示清楚地反映了钻杆在不同工作状态下的各种应力分布特征，同时也使钻杆的应力状态达到了可视化，使人们可以深入了解钻杆应力状态信息，以便不断的改进钻杆的设计以满足实际工程的需要。

At the same time, sales of wear resistant welding rod, cast iron welding rod, stainless steel welding rod, casting tungsten carbide welding rod, low carbon steel welding rod, factory products:úspecial wear-resistant electrode, Sham Tseng bit special wear-resistant electrode, with wear-resistant welding rod mill, cement brick special wear-resistant electrode, pears seeder cultivator blades and other special wear-resistant electrode, the above Domestic Product of several ministerial-level enterprise year-round use.

同时销售耐磨焊条、铸铁焊条、不锈钢焊条、铸造碳化钨焊条、低碳钢焊条，本厂拳头产品：木炭机专用耐磨焊条、深井钻头专用耐磨焊条、粉碎机用耐磨焊条、砖瓦厂水泥厂专用耐磨焊条、播种机旋耕梨刀片专用耐磨焊条等，以上产品数家国内厅部级企业常年使用。

Recently, limited company of technology of network of thunder of Shenzhen city fast (next weighing " fast thunder ") vice-president Luo Weimin to " daily of the first finance and economics " the reporter discloses, by American film society (the manages in the light of fast Thunder God litigation case of MPA) dominant, nolle prosequi actively with MPA respect and end, at the same time fast thunder already mentioned the countercharge bring a case to court that is aimed at MPA respect.

近日，深圳市迅雷网络技术有限公司副总裁罗为民向《第一财经日报》记者透露，由美国电影协会主导的针对迅雷公司的诉讼案，以MPA方面主动撤诉而告终，同时迅雷已提起针对MPA方面的反诉讼。

Studied pumping well system in this article, the intermediate power transmission parts uesed flexible rod, the downhole assembled rod pump, the ground driving device would transform up and down reciprocating motion into rotating motion. With own mechanism rounded trip for the downhole flexible rod and pump. Wellhead polished rod changed common stell for flexible polished rod. It was a innovation in theory study and craftwork method. It was a remarkable feature in this article, because these innovations were not studied and attempted for prehuman.

本文所研究的抽油系统，中间动力传动部件采用柔性抽油杆，井下配套杆式抽油泵，其地面驱动装置将传统抽油机驴头的上下往复运动变为旋转运动，并且能够利用自身结构对井下柔性抽油杆及泵体实现起下作业，井口光杆也由普通钢质光杆变为柔性光杆，这是理论研究和工艺方法的创新，这些创新都是前人所没有研究和尝试的，是本文的一大显著特点。

The piston is attached to the top of a connecting rod by a pin,called a piston pin or wrist pin.the bottom of the connecting rod is attached to the crankshaft.the connecting rod transmits the up-and-down motion of the piston to the crankshaft,which changes it into rotary motion.the connecting rod is mounted on the crankshaft with large bearings called rod bearings.

这个活塞被一个叫活塞销或轴颈销的销子连接在连杆的上部。连杆的底部被连接在曲轴上。连杆把活塞的上下运动传递给曲轴转变成旋转运动。连杆通过一个大的叫做杆轴承的轴承（其实就是滑动轴承，分成两个半圆轴瓦）安装在曲轴上。

The carbon fiber coiled rod proceed compare,analyses different kinds of carbon fiber coiled rod 'mer with carbon fiber world face bonding instance,and different kinds of carbon fiber coiled rod' mechanical property,thereby erect differ mer 'sucker rod not so much mechanical property of compartment' parallelism relation,thereby gist these one relation design new style dispensation 'carbon fiber reinforced polymer composite coiled rod for as well of the these theses versus available different kinds of differ mer.

本论文对已有的各种不同基体的碳纤维连续抽油杆进行比较，分析各种碳纤维连续抽油杆的基体与碳纤维的界面结合情况，以及各种碳纤维连续抽油杆的力学性能，从而建立不同基体的抽油杆与其力学性能之间的对应关系，从而依据这一关系设计新型配方的碳纤维增强复合材料连续抽油杆。

The lightning rod leads thunder and the strong thunder and lightning effect is very big to the threat of equipments safe movement,Lightning rod, lead the design of logging out, connecting a ground of pole with arrange direct ...

避雷针引雷，强大的雷电效应对设备安全运行的威胁很大，避雷针、引下线、接地极的设计和布置直接影响设备运行质量。本文以ZQZ-AZ型自动气象站为例，讨论原防雷结构的不足，提出改进的办法。

Super Rabbit submit new evidence to show that in court a long time after the publication, the Thunderbolt is still in its official website, including the rabbit version of Thunder, ayu Thunder, Thunderbolt, such as the perfect person to search advertising Xunlei software download service, including the Thunder ad version of the software to search download service.

超级兔子递交的新证据显示，在一审判决公布后的长时间内，迅雷仍然在其官方网站上提供包括兔子版迅雷、ayu迅雷、完美者迅雷等去广告迅雷软件的搜索下载服务在内的各种去广告版迅雷软件的搜索下载服务。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？