大功率的

The company has annual production capacity of 10 million a variety of high-power energy-saving lamp production capacity of environment-friendly and independent development of new products research center, has always been committed to rare-earth trichromatic green environmental protection and energy saving lamp development and production work.

公司拥有年产1000万支各种大功率节能环保型灯管的生产能力和独立的新产品开发研究中心，始终致力于稀土三基色的绿色环保节能灯管的开发和生产工作。

The Model 9's smooth uncolored response, its resolution and imaging, and its dynamics and room-filling power put it in the highest class of single-cabinet loudspeakers.

Model 9平滑无音染的频率响应、杰出的分析力与结像力，以及它那庞大的动态和大功率承载能力，使得它加入到了顶级单体扬声器的行列中去。

The people very are early realize CVT are facilitate driving, enhance the vehicles fuel oil efficient ideal installment, appears the bipyramid ball, the plate, the hooped column body from several dozens years ago and so on develops the leather belt transmission, but as a result of the rubbing surface friction coefficient and the components withstanding unit pressure limit, adds in the processing craft and the control difficult problem, cannot transmit compares the high efficiency, only limits uses in on the compact car.

人们很早就意识到CVT是方便驾驶、提高车辆燃油经济性的理想装置，由几十年前出现的双锥体球、盘、环柱体等发展到皮带传动，但由于摩擦面的摩擦系数及零件承受单位压力的限制，加之加工工艺和控制上的难题，不能传递较大功率，仅限用于微型汽车上。

Luying Cateye PCB traffic safety mark and SR series high power LED illuminating series earn social trust with good quality and long life-span, and market occupancy rate is increasing steadily.

公司研制的Luying Cateye路映猫眼PCB系列360°警示道路突起路标和SR系列大功率LED照明以其优良的品质，超长的寿命，赢得了社会的信赖，市场占有率逐步提高。

Grounding on the purpose of industrialization of laser, based on the thought of astigmatism compensation and thermal stability of the cavity, we employed high power LD to pump Nd:YVO4 crystal and used the introcavity frequency doubling with type 1 noncritical phase-match LBO crystal, which has high damage threshold. The cavity parameters are optimized by the use of ABCD theory and the resonatorstructure CAD software.

立足于激光器的产品化，基于谐振腔的像散补偿和热稳定性的设计思想，采用大功率LD单端泵浦Nd：YVO_4晶体，具有高光损伤阈值的Ⅰ类非临界相位匹配LBO晶体腔内倍频方案，应用ABCD定律和腔结构模拟软件CDA设计并优化了一组腔参数。

To study the lethal effect of high power near infrared diode laser on Locust Nymphae. Oedaleus asiaticus B. Bienko Nymphae that are the third age or before the third age and after the third age were irradiated aiming at the head in different time and power density by the power of 2W and the wavelength of 808nm diode laser. The death-ratio was observed especially after irradiation, five hours after irradiation and 20 o clock the next day after irradiation.

为研究大功率近红外半导体激光对蝗蝻的致死作用，选择采用功率2W、波长808nm的半导体激光器，针对三龄及以前龄期和三龄期后亚洲小车蝗蝻虫分组试验，激光束对准蝗蝻头部位置，进行不同功率密度、不同时间的照射试验，分别观察照射后即刻、照射后5小时和照射后次日蝗蝻的致死率。

Such kind of implemetation can perform irrevertable or reverable speed control. the part of pwm is built on the platform of arm embedded system. it can generate two adjustable impulses which can complement each other through the control of the timers in s3c2410x chip by c programming.

系统主电路采用大功率gtr为开关器件，h桥双极式电路为功率放大电路的结构，即可完成不可逆调速同时也可完可逆调速。pwm调制部分是在arm嵌入式开发平台之上，运用c语言编程控制s3c2410x芯片的定时器来产生两路互补的宽度可调的矩形波。

to overcome some disadvantages of low precision,slow dynamic response,unconvenience parameter adjust existing in high-power ultrasonic power supply,it applies intelligent control composed of 8089 microcontroller is proposed.the article introduces the modulation principle of spwm,the composition of high-power ultrasonic power system applying the single chip computer to realize the soft of phase lock loop,the mechanism of work and the software thought.it realizes the low loss,high power factor and the whole performance of the circuit is developed.

摘 要：针对目前大功率超声波电源采用模拟控制电路存在精度低、动态响应慢、参数整定不方便等缺点，采用单片机8089组成智能控制的超声波电源系统。提出了基于spwm技术的双闭环控制策略和应用单片机实现软锁相的工作原理和软件思想，使整个超声波电源实现了低损耗、高功率因数，优化了电路的整体性能。

Through analyzing the topology, control system and protection system of large power high voltage converter equipped with integrated gate commutated thyristor, a set of 7.5 MVA three-level neutral point clamped converter was designed.

通过对大功率集成门极换向晶闸管高压变流器的结构、控制系统、保护系统的研究，设计出一套7.5MVA的基于集成门极换向晶闸管的高压三电平中点箝位变流器。

Driving his Max Power engined 720, Giorgio broke the track record in qualifying with a time of 17.048 and also set a new record for most laps completed over 5 minutes - a run that would secure him the TQ honours.

驾驶他的最大功率发动机的720 ，意大利打破了记录在排位赛中有时间的17.048 ，也创造了新纪录，大多数圈完成了超过5分钟-一个小高潮，将确保他的T Q荣誉。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。