Study of theory and method of choice industries of Yanbian's SMEs

Method of choice model for time series

时间序列模型的选择方法

As content delivery over wireless devices becomes faster, more secure, and scalable, there is wide speculation2 that m-commerce will surpass wireline e-commerce as the method of choice for digital commerce transactions.

由于通过无线设备的交易活动更快捷，更安全，也更易扩展，普遍预测移动商务将取代有线电子商务成为数字商务交易平台的主要方式。

Draught excluder ( for doors or windows), of textile wadding spirally covered with yarns ( excl. those completely covered with textile fibres)

密封条（门或窗使用），纺织填料外缠纱线制成（不包括纺织纤维全包者）

Draught excluder ( for doors or windows), of wadding completely covered with textile materials

密封条（用于门或窗），其填料完全和纺织材料覆盖

Effect of Electric Field on Exciton Energy Level Width in Quantum Well

电场对量子阱中激子能级宽度的影响

Stark spectroscopy ( electroreflection spectroscopy) technique was applied to investigate the exciton transitions and charge transfer excitations in a Tin phthalocyanine ( SnPc) polycrystalline film.

采用斯塔克（Stark）光谱（电场调制反射光谱）技术研究了酞菁锡（SnPc）多晶薄膜中的激子跃迁和电荷转移。

Exciton Transitions and Charge Transfer Excitations in Polycrystalline Tin Phthalocyanine Film Studied by Stark Spectroscopy

用斯塔克光谱技术研究酞菁锡薄膜中的激子跃迁和电荷转移

Effects on exciton confinement and energy transfer in nano-line of low dimension polymer

低维聚合物纳米线中的激子限域和能量传递效应研究

Exciton transfer and the optical properties of two types of quantum islands ( dots) in ultrathin CdSe/ ZnSe layers

CdSe/ZnSe超薄层中两类量子岛（点）之间的激子转移和它们的光学性质研究

The results show that the pressure effectively enhances the NX → NN1 thermally assisted exciton transfer processes.

结果表明，压力效应明显地加强了N x→NN1的热助能量转移过程。

The vibration exciter is connected with the control switch by the wire.

连接电线连接激振器和控制开关；

Double eccentric shaft vibration exciter is the source of linear vibration.

振动给料机由双偏心轴激振器提供直线振动源。

The vibrationstructure consists of a vibration exciter, a wire and a control switch.

振动结构由激振器、连接电线、控制开关组成；

In order to increase the reliability of the excitation system for large turbogenerator and improve its response, a 70 KVA, 3,000 rpm and 400 Hz rare earth-cobalt permanent magnet ( REPM) generator has been built as a pilot exciter.

为了提高大型汽轮发电机组励磁系统的运行可靠性和响应速度，我们研制了一台70千伏安、400赫芝，3000转/分的稀土永磁发电机，作为副励磁机。

Wiring and Failure Analysis for Pilot-exciter& Stand-by Pilot Exciter of Excitation System

励磁系统副励与备副励的接线及事故分析

Research on the Magnetic Field Control of Large Adjustable Speed SM with Brushless Exciter As a result, a new mode of brushless exciter appears.

大型调速同步电动机无刷励磁磁场控制的研究无刷励磁技术是为了适应大机组励磁而出现的一种新的励磁方式。

As a result, a new mode of brushless exciter appears.

无刷励磁技术是为了适应大机组励磁而出现的一种新的励磁方式。

The high frequency fatigue testing machine mentioned in this thesis controls electromagnetic resonant mode exciter through the feedback of load sensor.

加载的频率可以达到80-250Hz，我们所研制的高频疲劳试验机控制器，是通过负荷传感器的反馈来对电磁谐振式激振器进行控制的。

The quasi-optical mode exciter with the method of quasi-optical conversion has high purity output mode, but its disadvantage is narrow bandwidth, low efficiency, complicated structure and many of its modules need high accuracy fabrication and assembling.

利用准光变换设计的准光模式激励器虽然其输出模式纯度高，但其输出为点频，频带极窄，效率较低，且部件多、结构复杂，各部件的加工装配精度要求高。

The short-circuit phase of KFD-3 loss of strong excitation is found by analyzing the current and voltage phasor as two-phase short circuit on HV side of transformer. The wiring mode of relaying impact exciter is presented.

通过分析变压器高压侧两相短路时的电流、电压相量，得出KFD3失去强励作用的短路相别，分析得出继电强行励磁装置接线方式。