查询词典 fluctuation

The first term of performance indices shows that the water surface fluctuation is small during control process, and construction cost is minor; the second term of performance indices shows that the changes of gate opening are small, and the energy consumption is minor.

性能指标的第1项反映的是在控制过程中水面变化引起的渠道安全超高较小，土建工程量小；性能指标的第2项反映的是闸门运行变化较小，能耗小。

Given the expectation for the function of the government in an open economy, the fiscal policy should play an important role in stabilizing economic fluctuation. It is well recognized that, however, the fiscal policy is far away from achieving the stability of the economy. In contrast, the fiscal policy itself in many cases is the main source of instability, and the misplacement of the fiscal policy sometimes leads to larger risks.

但是，许多学者认为，在开放条件下，财政政策远远不是它本应成为的一国经济的稳定力量，在很多情况下，本身却成为对外部门不平衡的主要不稳定力量，尤其在发展中国家，财政政策对一国的经常项目和资本项目都有非常大的影响，财政政策的失误往往会造成更大的风险。

The expectation value of atom dipole moment is always zero, but the fluctuation of dipole moment is a constant and not zero during the atomic spontaneous emission.

在原子的自发辐射过程中，其偶极矩的期待值总是零，但偶极矩的涨落恒等于一个不为零的常量，因此原子的自发辐射是由真空起伏导致偶极矩的涨落引起的。

Therefore the spontaneous emission of atoms is caused by the fluctuation of dipole moment that arises from vacuum fluctation. Jaynes Cummings model is an important system to produce quatum entangled state.

Jaynes-Cummings模型是产生量子纠缠态的重要体系，研究发现，原子与场纠缠态的信息熵和纠缠度随时间作周期性的振荡，量子态在非纠缠与纠缠态之间变化。

In the end, it is further developed of the inverse U hypothesis from monocycle condition to multi-cycle condition with a new hypothesis, which is called cyclical fluctuation of regional disparity.

在新古典经济学得出的增长轨迹基础上，利用简化的两地区逻辑曲线初步证明"倒U假说"的成立；并进一步讨论这一假说在多周期情形下的一个拓展，即地区差距的周期波动。

The unit adopts variable displacement hydraulic pump, hydraulic cylinder, movable pulley and broad belt to transmit power,has the charecteristics of abundant recovery and full use of power,minor fluctuation of electric motor load, low height of the unit, long stroke length and convinence of adjusting the stroke length and pumping speed, can realize the performance of being fast on the upstroke and slow on the downs...

该液压抽油机采用变量液压泵—液压缸—动带轮及宽胶带传递动力，具有功率回收利用充分、电动机负载波动小、整机高度较低、冲程长、冲程和冲次调节方便等特点，可实现上快下慢的工作状态，并具有失载与过载保护功能，是一种结构简单、重量轻、能耗少、载荷大的新型长冲程液压抽油机。

The voltage fluctuation and the harmonic distortion are limited within the demand of the national standard with the thyristor controlled reactor/transformer, multigroup switchable capacitor banks and hybrid active filter in the 10KV grid.

在10KV侧采用分组投切的滤波器，晶闸管控制的电抗器/变压器及混合滤波技术，使电网的电压波动及谐波电压因素限制在国家标准的范围内。

The temporal change in floes size of fine suspended sediments was measured in Xuliujin of the Changjiang Estuary in June of 2003, by using an in situ laser diffraction particle sizer, the laser in situ scattering and transmissomerty-100(LISST-100). The spectrum analysis was applied to analyze the fluctuation of floes diameter during the spring tide and the neap tide.

2003年6月利用现场激光粒度仪(LISST-100)在不扰动的情况下，获取了长江口徐六泾处悬浮细颗粒泥沙絮凝体的现场粒径系列资料，应用谱分析方法研究了絮凝体粒径在大小潮、表底层的变化规律。

There's little fluctuation in the location of neutral point for longer pile, and also fewer additional settlement.

较长桩中的中性点位置波动较小，附加沉降也较小。

Suppose the fluctuation of security market could be anticipated, the CPPI tactics has the best performance in the bull market, the TIPI and CM tactics is noneffective; but in the bear market, the CPPI and TIPI tactics is effective, the CM tactics is noneffective.

假设股市波动是可预期的，在股市处于单调多头市场里时，CPPI策略是有效的最佳动态PI策略，CM策略，TIPI策略是无效的；而在单调空头市场里CPPI策略与TIPI策略是有效的，CM策略是无效的。3。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。