全功率

Thus LES is proved to be suitable to simulate the flow and temperature fields of large scale vortices with complex geometric boundaries. LES cooperated with the second order full extension ETG finite element method is applied to simulate the forced convection heat transfer around two square cylinders arranged side by side. While the boundary conditions are symmetrical, the time history and power spectrums of drag coefficient, lift coefficient, averaged Nusselt number at the wall, and the streamwise velocity and temperature on the symmetrical points are calculated. The results show that the power spectrums are all almost symmetrical.

应用大涡模拟与二阶全展开ETG有限元离散格式相结合的方法对间距比为1.5的条件下横掠并列双方柱强制对流换热问题进行了数值模拟，通过边界条件对称时，对并列双方柱对称点上的速度和温度以及方柱的阻力系数、升力系数和壁面平均Nu数进行的时域分析和频域分析，得到了在对称边界条件下并列双方柱对称点上的速度和温度以及方柱的阻力系数、升力系数和壁面平均Nu数的功率谱均基本对称的结论。

While the laser diode was working on a repetition rate of 10 Hz at power as high as 60 W and pulse width of 400 μs, a free running stable oscillation with output energy of 3 mJ was obtained.

在重复频率为10 Hz，泵浦脉宽为400 μs，峰值功率为60 W的泵浦速率下，激光弛豫振荡每周期输出的能量为3 mJ，相应的全光光效率为12.5%。

The thesis focuses on the circuit design and parameter selection, including the power circuit, control circuit and drive circuit of the front-end converter. Apart from that, for the load-end converter, the design and critical components selection of the traditional full-wave rectification and synchronous rectification are presented.

本文设计和确定电路的各种参数，包括前端变换器的功率电路、控制电路和驱动电路，对于负载变换器则给出了普通全波整流和同步整流的滤波器设计和一些关键器件的选择。

The three-phase full-wave rectifier charging system is composed of 3 silicon-controlled rectifiers and 3 diodes, and a variable resistor is used to adjust the trigger level such that the power factor of generator can be raised, the current harmonic content can be reduced, and the operational efficiency of generator can be improved.

本研究之整流充电系统，为利用三颗矽控整流器和三颗二极体组成的三相全波矽控整流充电系统，利用VR可变电阻调整元件来做触发机能，可使发电机端功率因素提高，降低电流谐波含量，得到稳定的直流链电压，提高发电机的运转效率。

Full-wave commutation,compact structure,especially for areas with poor Power supply.

全波整流，整机功率小，对电源要求不高，适用于电源条件较差的地区。

Directed against the existing problems in traditional mixing process, secondary mixing techniques, such as pre-mix cement mortar, pre-mix cement paste, sand enveloped with cement paste, coarse aggregate enveloped with cement paste and aggregate enveloped with cement paste are discussed, and the effect of different mixing technological processes on concrete mixing quality is studied. The homogeneousness, compression strength of concrete and the power consumption are tested during the test, and compared with the traditional mixing method.

针对传统混凝土搅拌工艺中存在的问题，讨论了先拌水泥砂浆法、先拌水泥净浆法、水泥裹砂法、水泥裹石法、粗细骨料全造壳法等二次搅拌工艺，研究了不同工艺流程对混凝土搅拌质量的影响，测试了不同条件下混凝土的匀质性、抗压强度指标及功率消耗，并与传统搅拌工艺进行了对比试验。

Experimental results of 380 V voltage input and 5 kW power output verified that the new method is valid and feasible.

全压380 V输入和5 kW功率输出实验结果表明，该换流策略是可行的。

The simulation results of the blade root load and the power curve of aerodynamic performance on the wind turbine are obtained.

使用这些全攻角翼型气动性能数据，在Bladed软件中建立风电机组的叶片模型，分析计算该叶片的气动性能、整机功率曲线等性能。

In order to overcome the key problems in the experimental study on microwave plasma thruster, of which the whole system operates under vacuum condition, and to remove the unnecessary energy loss, the microwave source of plasma thruster operated under atmosphere and vacuum condition was developed by applying the design technology of the nonlinear power supply, the integration of attenuator and detector, liquid cooling, after overcoming the gas breakdown problems of electro and microwave apparatus.

为解决微波等离子推力器全系统在真空中进行实验，减少不必要的能量损失，利用开关电源、衰减器和检波器一体化设计技术和液体冷却技术，通过解决微波电子器件在真空中的放电问题，研制出可在大气与真空环境中工作的体积小和质量轻的微波等离子推力器微波源，其输出和反射微波功率可根据磁控管的阳极电流和检波器的输出电压进行测量。

It is on nanosecond order. It is the second research achievement that study all-optics switching of low switching power.

研究含有掺稀土光放大器的低开关功率全光开关是我们的创新研究的成果之一。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。