弓头,pan-head英语短句,例句大全

弓头,pan-head
1)pan-head弓头
1.The finite element models of the pantograph and the catenary are established,regarding the pan-head of the pantograph as an elastic body.结果表明:当DSA250型受电弓通过该型接触网时,其在未出现离线情况下的最高速度为230 km/h;受电弓前、后滑板表现出不同的受流特性,前滑板相对后滑板有较好的受流;考虑弓头与接触线的相互作用频率高于20 Hz时,40~100 Hz的高频分量在接触力和加速度频谱中占有较大的比重,弓头的变形模态将对弓网的动力学特性起至关重要的作用,如果采用质量块受电弓模型进行计算,将造成该模态的缺失,从而导致计算结果有较大的偏差。

英文短句/例句

1.The Optimization Design Research on Pantograph and Pantograph Spring System Based on Genetic Algorithms;基于遗传算法的受电弓及弓头弹簧系统优化设计研究
2.The optimum geometric parameters, which could improve the pantograph performance, could be obtained successfully.并运用虚拟样机技术对弓头升弓轨迹、升弓转矩和平衡杆摆动角度等优化所得参数进行了仿真验证。
3.These three were commonly known as the "trio"or "soft bow".俗称"三件头"，又称"软弓"。
4.The catapult projected stones into the air.弹弓把石头射向天空。
5.Such orchestras were called "five frames"or "hard groups".称为"五架头"，又叫"硬弓组合"，
6.an arrow with a four-edged head that is shot from a crossbow.一种发自石弓的四面刃头的箭。
7.The neck should be raised and arched, the nose line vertical.马匹颈部高抬弓弯，头部的鼻线垂直。
8.the sport of shooting arrows with a bow.用一个弓的箭头进行射击的运动。
9.He had a stone in his sling.并且把自己的弹弓装上了一块石头。
10.Then, with just his sling and these stones,然后，他仅带着他的弹弓和这些石头，
11.Catapult - I could use this to throw stones further弹弓─我可以用这个把石头丢的更远
12.An arrow with a four-edged head is shot from a crossbow.有四面刃头的箭是从石弓发出来的。
13.The soldier on the ground holds a bow in his hand and has an agonized expression on his face as he draws his last breath.手执弓箭的士兵仰面朝天，露出死难临头的神情。
14.an arched brick or stone ceiling or roof.用砖块或石头砌成的弓形天花板或屋顶。
15.It matched well with the crown on her head and the bow on her left ear.它和她头上的皇冠和左耳上的弓形都很匹配。
16.If one does not turn, He will whet His sword. He bends His bow and makes it ready.12若有人不回头，?必磨快?的刀，拉紧?的弓，豫备妥当。
17.Application of Scalp Coronal Incision in Zygoma,Zygomatic Arch and Orbital Fractures头皮冠状切口在颧骨、颧弓、眶周骨折中的应用
18.He held a bow in his left hand and his quiver hung on his right hip.头上戴着猎人的头巾，左手持弓，右跨下挂着一个箭袋。

相关短句/例句

pantograph head受电弓弓头
1.The method for installing carbon-based contact strips on pantograph heads is very important from the operational points of view.从运用的观点来看,受电弓弓头碳基滑板的安装方法是非常重要的。
3)collector head spring system弓头弹簧
1.A nonlinear finite element method was applied in the research of the collector head spring system of pantograph.将非线性有限元理论应用于机车受电弓弓头弹簧系统的研究。
4)a blunt-tipped drill椎弓根钝头钻
1.Objective To design a blunt-tipped drill of pedicle screw placement,in order to decrease the accident of pedicle violations during pedicle screw placement.目的设计一种新型椎弓根钝头钻,以期减少椎弓根螺钉植入的穿破率。
5)bow[英][b??][美][bo]弓，船头;鞠躬;vt.用弓拉，点(头);vi.用弓拉琴，鞠躬
6)bow[英][b??][美][bo]v./n.鞠躬，点头 n.弓;船头