查询词典 synchronously

A synchronously pumped mode-locked yetterbium-doped fiber laser is obtained when the pump semiconductor laser current is modulated sinusoidally at the appropriate frequency.

通过对抽运光源半导体激光器的驱动电流进行正弦调制，实现了掺镱光纤激光器的同步抽运锁模。

This paper bases on frequency-hopped and frequency synthesis theories, and through demonstrating three schemes of frequency synthesis, the paper selects one of these schemes that uses DDS spiriting up PLL and improves on the method according to the practical target and synchronously, the paper analysis the capability of the output signal and the conversion time of the frequency.

本文在对跳频理论及频率合成理论分析的基础上，在讨论三种频率合成方案后，设计完成了一种适于本课题的DDS激励PLL的混合方案，并对频率合成器主要性能中的输出信号的噪声特性和频率转换性能做了研究分析。

In spite of the low binding affinity between the Mis13/Mis14 dimer and the Mis12/PMF1 dimer,the four proteins form a heterotetramer with a stoichiometry of 1:1:1:1 when these four proteins expressed synchronously,implying that the four subunits can act synergically to form an intact Mis12 complex in vivo.

Mis12复合物在动点上的功能已经较为清楚，但是它们分子间结合方式仍是未知的，为了解析Mis12复合物的分子构架，我们引入了共表达系统在体外表达和重组该复合物。

We have measured synchronously the variation of temperature and infrared radiation fields before and after stickslip events on compressive and extensional en echelon faults by using an infrared thermal image system and a contacttype thermometric apparatus in the laboratory.

在实验室使用红外热像仪和接触式测温仪同步观测记录了压性和张性雁列断层失稳错动前后的热场变化过程。

of programming design and manual operation trapeziform figure in system of numerical control lathe Corresponding project to problems is provided synchronously.

可编程控制器在机械制造的设备控制中应用非常广泛，通常用来实现逻辑控制和顺序控制，在普通车床数字化改造中，用PLC作数控系统的核心部件是一个新的课题。

The article introduces some needed resolving problems. It brings forward principium of control, How can drive the servo signal and X and Z to the coordination of movements; How to change the feed rate; design of system structure, confirmation for input and output point, I / O address allocation;and also the project for speedup/down control during the screwthread processing. Method of programming design and manual operation trapeziform figure in system of numerical control lathe Corresponding project to problems is provided synchronously.

介绍可编程控制器应用于车床数控系统需要解决的问题，如何产生驱动伺服机构的信号及X、Z向的动作的协调；如何改变进给速度等；提出PLC作为数控机床主控制器的控制原理；系统结构设计；输入/输出点数确定及输入/输出点的地址分配；螺纹加工中升、降速的解决方案；程序设计及具体操作梯形图设计的方法，并给出相应的解决方案。

Thus, CO2 can be sequestrated in the deep unminable coal seams which enhance coalbed methane production of the deep unminable coal seams synchronously.

由于煤介质具有特殊的双重孔隙结构、吸附性强等物性特征，对CO2具有很强的吸附能力，且大于煤介质吸附CH4的能力，因此，可将CO2注入深部不可开采煤层储存，在长久处置CO2的同时亦可促进深部煤层气的开采。

Through simulation and computation, some critical values to contral interferences are obtained. These values have directive significance to the design and deployment of WRAN.(4) New methods to measure and analyze spectrum aredevelopedAccording to the shortages of previous spectrum measurements, new methods to measure spectrum occupancy in wide-band and multi-point synchronously is proposed in this dissertation, and the tests last a whole week; the relativities of licensed services are considered when test points are selected. More importantly, data mining and in-depth analysis are carried out with the huge amounts of test data, and a channel analysis method using Channel Vacancy Duration and Service Congestion Rate are proposed. The spectrum relativities of 3-dimension in time, space and frequency are researched also. The correlativity between channel state and history information is discoved, and which will provide the scientific basis to channel modeling, spectrum analysis and decision of CR users.

4提出了频谱测量与分析的新方法针对以前频谱测量工作存在的不足，本文提出了多点同时广域频谱测量方法，测量工作持续了一周的时间，同时考虑了测量地点的选取和频谱授权业务之间的相关性；对测量得到的海量数据进行了数据挖掘和深度分析，提出了使用信道空闲时间(Channel VacancyDuration，CVD)和业务拥塞率(Service Congestion Rate，SCR)进行信道分析的方法，研究了频谱之间的时间、空间、和频率三维立体的相关性，发现了信道状态和历史信息的关联性，为CR用户的信道建模、频谱分析和决策提供了科学的理论依据。

The method course is as follow: Considering logistics relation and non- logistics relation synchronously, admeasuring coefficient to two relations, founding compositive relationship chart of reference points and inner function area, making the chart of function area relative position, getting the final plan by admeasuring function area and adjusting roadway network.

同时考虑物流活动关系和非物流活动关系，并配以权重，建立控制点和功能分区的综合关系量化关联图，生成区域相对位置图，然后配置区域面积和调整内部道路，得到最终布置图。

A novel phase synchronously demodulating circuit was introduced in this paper,in which digital controlled analog switch and high power amplifier were adopted.

介绍了一种采用数控模拟开关和大功率运放的角度位置信号同步相敏解调电路。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。