大功率的

PHS system still has great market in China at present, and relevant technology is in the grasp of Japanese. Therefore, the relevant research of PHS system natural value and especially study power amplifier transmitter of high power base station.

目前PHS系统在中国大陆仍存在著极大的市场，而相关技术又掌握在日本人手中，因此PHS系统之相关技术值的研究，尤其是在大功率基地台发射用功率放大器这方面。

The experimental results of Ni based ohmic contacts on the N-type SiC are compared with that of the simulation.

而在高温大功率应用时，欧姆接触的低电阻率和稳定性是决定器件性能的两个关键因素。

In the same time, the varying parameter and orthonormal testing calculation are carried out in respect to a high diesel engine, and the influence degree are got.

同时，结合某中速大功率柴油机，进行了喷射系统的变参数研究及正交试验计算，得出了各参数对性能指标的影响情况和影响程度。

The third chapter of the thesis discusses a novel paraboloidal lensed multimode fiber used in the fiber coupling of the high power single emitter broad area diode laser, and the results of the computer aided simulation of the coupling have been described too, the results verified the theory of paraboloidal lensed multimode fiber.

第三章详细讨论了利用抛物面型微透镜多模光纤与大功率宽发射域半导体激光器的耦合效率；利用计算机辅助模拟了耦合过程，并通过实验验证了耦合系统的可行性。

Designing and building high precise, high voltage pulse generator is expected to be the key technologies for PEF to cold pasteurize liquid food.

PEF非热食品处理的关键技术之一是设计、制造大功率高精度的高压脉冲电源。

In order to control the temperature of the laser-diode ,a semiconductor cooler ——— PELTIER is applied and the technique of fuzzy and PI control method are adopted either.

利用半导体致冷器对大功率激光二极管进行致冷和精密温控，采用模糊控制与PI 控制相结合的方法，构造了激光二极管的全固态致冷系统。

In order to develop our power industry, we must produce more and pore powerful generators.

为了发展我国的电力工业，我们必须生产越来越多的大功率

High power and super-high speed semiconductor switch RSD has great advantages in pulse power system : simultaneous turn-on in all area, high di/dt, high speed, high power, low power loss, infinite series, easily used in series and parallel connection, low cost and long lifetime etc.

大功率超高速半导体开关RSD相对传统的半导体开关在脉冲功率领域具有显著的特点：全面积同步导通，di/dt高，开启速度快，开通延时几乎为零，功耗低，理论上可无限串联，串并联使用时触发相对简单，维护方便、成本低而且使用寿命长。

Lower forward voltages provide benefits for high-power applications in which heat and power dissipation are prime concerns.

拟译：较低的正向导通电压对主要考虑热量和功耗问题的大功率应用十分有益。

Meantime, EMD also dedicate to support the long term development for China Railroading, At ending of 2005, EMD and the PRC Ministry of Railroads signed the Technology Licensing Contract , the contract total amount is over USD$ 0.5 billion. In the beginning of 2006, EMD set up the first WFOE in China which named is Electro-Motive Technical Consulting Co.

同时，EMD公司也致力于支持中国铁路建设的长期发展，在2005年底，EMD与中国铁道部签定了大功率内燃机车的技术许可合同（同时签署了300台散件机车引进合同），其合同总金额高达5亿美元。2006年初，EMD在中国成立了第一家独资公司—北京易安迪技术咨询有限公司来配合执行此合同。

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。