查询词典 rod

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。

Rod Blagojevich is speaking out about people she says she considered friends, Paddy Blagojevich said she and her husband and their friends were strong enough to go against the tide and defend him.

前伊利诺州州长Rod Blagojevich 的妻子Paddy Blagojevich以朋友的身份向公众发表声明，表示她和她的丈夫以及朋友们有足够强的能力紧随其后来保护他。

One thing that concerns about A-Rod's hot streak is that all of the fools that spend most of their time booing him may start to expect a homerun every time up.

关於A-Rod热门挂虑的一件事是花费他们很多的时间作嘘声，大部分的所有傻瓜也许每一次开始便期待一支全垒打。

A-Rod says daughter Natasha's love for New York is part of equation that helps keep him in pinstripes.

A-Rod说他女儿Natasha对纽约的爱是使他仍然身穿洋基条纹衫的原因之一。

That fact was driven home again the other day when I watched A-Rod bust up the line in Dunedin after hitting a ground ball to the left side.

回到现实，有一天，我观看A-Rod在Dunedin的打击，在击向左侧的滚地球后，他使出吃奶的力气，使劲的往一垒跑，期望能比球早到，他失败了。

Q. But there was somebody called Rod Laver who couldn't play twenty Slams in five years, and Rosewall didn't play 11 years, so 44 Slams.

但有个无法在五年打20次大满贯叫 Rod Laver 的人，还有个 Rosewall 没有打11年，所以44次。

ROGER FEDERER: I'm thankful.Q. But there was somebody called Rod Laver who couldn't play twenty Slams in five years, and Rosewall didn't play 11 years, so 44 Slams.

但是有个叫ROD LAVER的人，他并没有在五年之内拿下二十个大满贯，ROSEWALL也没有在11年内拿44个。

Some of the rallys were truly stunning, some of the recovery play seemed to break the bounds of human possibility and the gaggle of greats sitting in the Presidents' Box including Rod Laver, Ken Rosewall, John Newcombe, Tony Roche and Neale Fraser were, like the rest of the 15,000 crowd, repeatedly forced into rapturous applause.

许多对打回合真的让人惊心动魄，许多救球似乎打破了人类的极限。一群伟大的球员坐在主席包厢，他们有Rod Laver， Ken Rosewall， John Newcombe， Tony Roche and Neale Fraser。他们就如同在场的其他1万5千名观众，不时的热烈鼓掌。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。