振动

Then, according to HVS, the vibrant valve is designed. On the basis of coupling analysis and simulation study of the vibrant valve and the release valve, the simulation curve about the fluid pressure variation in the pile-driving oil pipe is obtained, by which the relationships among the highest pressure value, average pressure value and the pile-driving frequency are obtained.

然后根据液压振动系统设计了振动开关阀，并重点对液压振动系统中的溢流阀和振动开关阀进行了耦合分析和仿真研究，得出压桩油路中流体压力变化的模拟曲线，并根据模拟曲线分析得出流体压力的最高压力值、平均压力值和压桩频率间的相互关系。

Coupling between different planers motion of a cable and between cables and mast having been considered, a practical formula is developed to calculate dynamic tension of cable and dynamic equations of guyed mast expanded order system are derived.

在单索结构振动理论的基础上，用纤绳的前4阶振型拟合其空间振动曲线，综合考虑纤绳在空间的耦合振动和纤绳、杆身的相互影响，得到纤绳动张力实用表达式和整体结构的扩阶振动方程。

From the view point of vibration,automobile is divided into a body vibration system and powertrain torsional vibration system.

从振动的角度看，汽车振动系统可分为车身振动系统和动力传动系扭转振动系统。

Electric massager high frequency due to vibration, vibration strength is weak, more suitable for the elderly in the use of massage and health care; and electromagnetic vibration frequencies due to slow massage, vibration strength is higher and thus more suitable for sports massage and young people.

电动按摩器，由于高频振动，振动强度较弱，更多的在按摩和保健使用适合老人和电磁振动频率由于缓慢按摩，振动强度较高，因此更多的运动按摩和青年合适的人。

It is analyzed the influence of electrical locomotive carbody canopy on the frequency of the carbody vertical bending vibration,the side wall transverse bending vibration and the carbody torsion vibration around the longitudinal axis.

分析了电力机车车体顶盖对车体垂向弯曲振动频率、侧墙横向弯曲振动频率、车体绕纵向轴扭转振动频率的影响，指出车体顶盖对车体垂向弯曲振动频率的影响是很小的，并且通过实例验证了这一点。

According to the national standards(GB/T50452) and the allowable value of panicle vibration velocity at bottom of high-station base,the impact of the superposition of ground traffic vibration and subway vibration to timber structure of Bell Tower and its high-station base is comprehensively evaluated.

9依据国家标准(GB/T50452)和高台基底部质点振动速度容许值，对地面交通振动、地面交通振动和地铁振动叠加对钟楼木结构和高台基的影响进行了综合评估。

This paper developed a vibratory tapping chuck base on vibratory cutting principle.The characteristic of the vibratory cutting force using the chuck is investigated by large number of experiments.

文摘：本文根据振动攻丝基本原理，研制出具有振动攻丝功能的振动攻丝卡头，并利用该卡头对振动攻丝切削力变化特点进行了大量的实验研究。

In addition, the diameter 400mm-1800mm the SF series vibrating screen vibrating object using a more advanced vibration molding tray, making shaker sieve screening machine has a higher efficiency, longer service life, product quality and performance have been achieved the level of the world's leading, fully able to meet the screening needs of different industries.

另外，直径Φ400mm—Φ1800mm 的SF系列振动筛振动体采用了更先进的一次模压成型振动托盘，使得振动筛筛机具有更高的筛分效率，更长的使用寿命，产品质量和性能均已达到世界领先水平，完全能满足不同行业的筛分需求。

The round cross-section rods in quayside container crane are very easy to induce wind resonance,and the main form of the rod wind vibration is crosswind vibration,especially the vortex vibration.

岸边起重机川的圆截面杆件容易发生风致振动，风致振动山的主要表现形式为横风向的振动，其中以涡激振动为主。

The torque me asurement experiment in hand tappin g shows that suitable tapping motion w ith high frequency can remarkably re duce tapping torque,and the dominating parameters in hand tapping are cutti ng angle and separating angle,which laid a foundation for the study on vib ration tapping and its popularization and a pplication.

对手动攻丝这种极限振动攻丝过程的扭矩测试结果表明，丝锥对工件的低频、低速往复切削作用也可以使攻丝扭矩显著下降。这表明影响手动攻丝扭矩的主要因素不是振动频率或冲击的大小，而是切削角和分离角的大小，这为进一步究明振动攻丝的机理及促进振动攻丝技术的推广应用奠定了基础。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷