查询词典 machine-hour

In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlabs simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.

本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真，并利用方程对等法进行土壤参数的计算和仿真，又在仿真的基础上使用遗传算法对桩机进行了优化，从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果，并得出了随沉桩深度的增加，桩机的最佳激振频率由小变大，最佳参振质量由大变小的结论，深化了对该系统动力学性能规律的认识。

Since established, Huafeng Printing Machine Co., Ltd. is always adhering to the management philosophy —" honest and integrity" as well as the spirit of pursuing being outstanding, therefore, we have already succeeded in developing the machines of high quality and performance – rotogravure printing press, dry laminating machine, itemizing machine, etc.

华丰印刷机械有限公司自创立以来，始终秉持"诚实守信"的经营理念，矢志追求卓越的精神，已成功开发出最广泛的高性能高品质的软包装制造机械—印刷机、复合机、分条机等。

The company has introduced international advanced level of mechanical production equipment, after several years of steady development, now have more than one large-scale imports of CNC Machining Center, CNC EDM, sulfide hydraulic machine, milling machine. Sandblast machine.

本公司引进国际先进水平的机械生产设备，经过几年的稳步发展，现已有多台大型进口数控加工中心，数控火花机，硫化油压机，铣床。

This text researchs the laser scanning control system and software. The system adopts the way of light machine scan. It is mainly made up of the laser scanning control system, machine scanning system and lasers blast-off machine.

本文针对激光扫描控制系统与软件进行了研究，系统采用光机扫描方式，主要由激光扫描控制系统、机械扫描系统及激光发射器组成。

Narrow Web business card printing and membership card making machine manufacturers are working very hard for cards and membership cards to producers so that they develop and establish a specific market business card printing and membership card-making machine, such as to be able to business card printing and membership card production with high added value's trademarks, labels, lottery, scratcher and laminating, cutting, drilling, hot pressure type business card printing and membership card-making machine.

窄幅卷筒纸制卡和会员卡制作机创作发明商侧在发奋为制卡和会员卡制作商不求应不妨使他们斥不天和拆除起特定阛阓的制卡和会员卡制作机，如不妨制卡和会员卡制作具有较矮附加值的字号、标签、彩票、刮刮卡和举行双膜、模切、打孔、烫压功用的陈型制卡和会员卡制作机。

CNC face milling and drill centres hole machine （Referred to as CNC milling fight machine ）,machine is mainly used for shaft parts batch and mass production, miling shaft at both ends 、 drilled the centers hole and turning one end of cylindrical axis, configured SIEMENS 802C CNC system , is controled by three axis, that is, the left X-axis spindle box movement, Y Right-axis spindle movement, Z-axis hydraulic self-centering jig up and down movement, according to the procedure to complete part of the auto-processing, processing of high precision and high efficiency.

数控铣端面钻中心孔机床，机床主要用于轴类零件成批和大批量生产，铣削轴的两端面钻中心孔并可套车轴一端的外圆，配置SIEMENS 802C数控系统，三轴控制，即X轴左主轴箱运动，Y轴右主轴运动，Z轴液压自定心夹具上下运动，按程序完成零件的自动加工，加工精度高、效率高。

The self-excitation criterion of single-machine is difficult to apply to multi-machine power system, so the mathematical model to judge the self-excitation of all generating sets in multi-machine power system is researched.

1引言随着同步发电机组单机容量的增大和远距离负荷中心电站的建设，以及电力系统容量、电压和输电距离的不断发展和提高，许多问题随之产生，同步发电机的自励磁问题就是其中之一。

In association with the improvement design practices on winding equipment for main cable of large span cable bridges liking Shantou Gulf Bridge, Xiling Yangtse River Bridge and Xiamen Haicang Bridge, some contents are systematically described on the basis of electric control system of ZLC series winding machine for main cable, including mechanism composition of the winding machine for main cable, mathematical relationship between rotation speed of winding system and travel speed of the winding machine, work principle of accurately matching control on the two speeds with PLC and frequency converter, wireless measurement and monitor of winding system tension, automatic override control on cable clamp as well as practical effect of a real bridge application.

结合对汕头海湾大桥、西陵长江大桥和厦门海沧大桥等大跨度悬索桥的主缆缠丝施工设备－主缆缠丝机的改进设计实践，以ZLC系列主缆缠丝机的电气控制系统为基础，系统介绍了主缆缠丝机的机构组成、缠丝系统旋转速度与缠丝机行走速度之间的数学关系、采用PLC及变频器对两速度进行精确匹配控制的工作原理、缠丝系统张力的无线测量、监控、索夹的自动跨越控制以及实桥的应用效果。

Then in the machine system destruction, how the hideaway district destruction later or the parallel import machine will have with a line of machine same system, we will provide restore the plate also are the blue color express train system restore the service plate.

那么在机器的系统破坏，隐藏分区破坏以后或者水货机器怎样拥有和行机一样的系统，我们提供恢复盘也是蓝色快车的系统恢复服务盘。

Resistance main production machine, capacitance shear pin machine, Crystal molding machine, hydraulic.

主要生产电阻成型机，电容剪脚机，晶体成型机，液动。

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。