查询词典 oscillation

The oscillation of the large balance wheel is spectacular in its action.

振动大的平衡轮壮观的是在其行动。

Thus by using longer crystal and focused pump beam in OPA or OPO, the gain of amplification can be increased and oscillation threshold be reduced.

本文从理论上和实验上证实，OBNC对OPA和OPO参量作用有特别重要的意义，它可以使泵光束和信号光束在非线性晶体中实现最大的交叠并允许泵光束有较大的发散度，从而可以通过加长非线性晶体的长度或会聚泵光以增加参量作用的增益和降低振荡的阈值。

On the base of studying the forming mechanism of spire ditches in deep-hole boring process, this paper analyses theoretically the effect of the boring bar diameter on the oscillation and spire ditches and established the mechanical model.

在研究深孔镗削螺旋沟产生机理的基础上，对深孔镗削加工过程中镗杆直径对振动及螺旋沟的影响进行了理论分析及力学建模，并通过试验研究了增大镗杆直径对减小振动和抑制螺旋沟的积极作用。

From these parameters, the new findings are:(1) The ice density from investigation is lower than 2-3 tenths compared with that from NOAA Ice Chart, and the ice thickness in the summer is less than 2 m compared with the results investigated during the First Chinese National Arctic Research Expedition in 1999 (CHINARE-1999);(2) The standing deviation of ice bottom fluctuation is 3.8 times of that of the snow surface on the ice sheet and (3) the maximum speed of ice floe CHIS7 is 1300 m/h in rotation and oscillation.

这些参数指出：现场调查的海冰密集度同NOAA冰图上的密集度相比低2~3成，而厚度比1999年的中国首次北极考察结果减少2m；冰层底面起伏方差约是冰层表面积雪起伏方差的3.8倍；浮冰最快以1300m/h速度运动并伴随振荡旋转。

In raising test tube, amid adds person bromine water, oscillation, what phenomenon does observation have to happen?

在其中一支试管中加人溴水，振荡，观察有什么现象发生？

Analyzing and simulating the full closed-loop position servo system of CNC machine tools,this paper proves that mechanism velocity feedback can eliminate the oscillation caused by the lack of rigidity of mechanical driving chain,which is applied in the test process and good result are achieved.

通过对数控机床全闭环位置伺服系统的分析和仿真，证明机械速度反馈能有效地消除由于机械传动链刚度不足引起的振荡，并在调试过程中得到应用，收到良好效果。

Experimental investigations on combustion oscillation in boiler furnace were performed.

对锅炉炉膛内燃烧振荡现象进行了实验研究。

The real tangential velocity fluctuation indicated that there existed an instability of swirling flow in the cyclone.This instability resulted in the rotation center of the swirling flow deviating from the geometric center of the cyclone,which produced the quasi-periodic oscillation of swirling flow and gave the real tangential velocity fluctuation.

瞬时切向速度的变化反映了旋风分离器内旋转流的不稳定性，这种不稳定性导致了旋风分离器内旋转流的旋转中心与几何中心不重合，旋转中心围绕着几何中心摆动，由此造成了瞬时切向速度随时间的类周期的波动变化。

Heavy haul train ; nonlinear oscillation ; Newmarkβ method ; equilibrium iteration method ; draft gear ; hysteretic characteristic

重载列车；非线性振动； Newmark-β法；平衡迭代法；缓冲器；迟滞特性

Creation mechanism of combustion noise was discussed,and the effect of the maximum combustion pressure,the maximum pressure rise rate and high frequency pressure oscillation on diesel engine combustion noise with different pilot injection strategies adopted were analyzed.

讨论了燃烧噪声的产生机理，分析了直喷式柴油机采用不同的预喷射策略，气体最高燃烧压力、最大压力升高率及气体高频压力振荡对燃烧噪声的影响。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。