查询词典 quasi-periodic

According to the characteristics of wind field on bridge, WAWS method is utilized to simulate the fluctuating wind velocity time history. Based on the quasi-steady aerodynamic forces theory, the expressions of the aerodynamic forces acted on per length of the whole bridge deck are introduced.

然后根据本桥梁所处风场特点，利用谐波合成法模拟了该桥梁上的脉动风速时程，基于准定常气动力理论，给出了作用在整个桥梁主梁单位长度上的气动力表达式，并对模拟的结果进行了检验。

The wackiest popped up unexpectedly on the Web site of the Chinese central bank -- itself a stunning sign of the nation's ambitions to shape the new order. It proposed that the IMF greatly expand its issuance of "special drawing rights," the multilateral quasi-currency it dreamed up in the late 1960s.

最为古怪的想法突然出现在中国央行的网站上——它本身就是中国塑造新秩序雄心的一个令人震惊的迹象。

At what point should we consider ourselves a quasi free American — when government takes two-thirds or three-quarters of our earnings?

在什麼时候，我们应认为自己是一个准自由的美国-当政府需要有三分之二或四分之三，我们的收入呢？

Besides being applied to the reading instrument of amblyopia , it can play an active part in taking pictures of the television and the film , and in transforming each other. In addition , it is the front sensor of CCTV for quasi moving object and the triffic supervisory system.

准高帧频CCD 摄像机具有75 帧/ s 的图像速度，除了适合于弱视阅读机以外，还能在电视电影拍摄和相互转换应用中起到积极作用；另外还能在电视监控准动态运动物体和交通监控系统中作为前端传感器。

Quasi-1D features in carrier transport, recombination and emission, et al., were studied in the V-grooved QWR samples modified by selective ion-implantation and rapidly thermal annealing, by means of Micro-photoluminescence and magneto-transport measurement.

利用显微光致发光光谱研究经选择性离子注入和快速热退火后的单根GaAs／AlGaAs量子线结构体系中的载流子在输运、复合发光等方面的一维特性。

In Chapter 4, the Thwaites＇s method for 2-D laminar boundary layer and the Truckenbrodt＇s method for 2-D turbulent boundary layer are developed to solve the"quasi-3-D"equations for the 3-D boundary layers on rotating helical blades, and a integral method, which can be solved by iteration, is resulted.

在第4章中，计算二维层流边界层的Thwaites方法和计算二维湍流边界层的Truckenbrodt方法被推广用以解关于旋转螺旋面上三维边界层的&准三维&方程，得到一种可迭代求解的积分方法。

The thesis takes the fundamental education as its focus, and the new public management theory as its logic support, and applies the case research method to analyze the background under where the current western countries" fundamental education administrative system is brought out, and discuss the this system"s establishment process, and finds out policy suggestions appropriate for Chinese quasi-marketing reform on fundamental education which are expected to provide more theorise reference for the decision-makers of Chinese fundamental education.

本文研究定位于基础教育，以新公共管理学理论基础为逻辑支撑，运用案例研究方法，分析当代西方国家基础教育管理体制制定的背景，探讨制定过程，总结西方国家基础教育管理体制制定过程的共性和个性，挖掘其对我国基础教育准市场化改革的政策建议，期望对国内基础教育政策决策者提供理论参考。

One of China - United States route, China - Australia, and other ocean-going quasi-ban Route rate has been maintained at 100%.

其中中国--美国航线、中国--澳大利亚等远洋干线的准班率一直保持在100%。

Considering the difference of time scales for thermal transients in the oil film and bushing,the transient and quasi-steady methods were put forward.

在求解过程中针对油膜和轴瓦温度场的时变性的不同，提出对它们分别进行非稳态和准稳态数值求解的方法。

Some circuits use resonant, quasi-resonant, and/or multi-resonant techniques. However, voltage or current stresses in these converters are higher and require the devices of higher VA rating. Some circuits use passive snubbers or active clamp techniques. However these converters become more complicate. Phase-shift ZVS technique has been used in bidirectional DC/DC converters since it can realize ZVS for all switches without auxiliary switches.

谐振、准谐振或多谐振技术方案，变换器的电压电流应力较高，变频控制增加了滤波器设计的难度；能量缓冲吸收电路或有源钳位电路方案，由于需要增加多个额外辅助元件，增加了变换器的复杂性；全桥相移技术方案，由于主电路无需增加额外元件，只需利用相移控制，即可实现软开关，因此引起关注。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐