有效声孔径。电极厚度以及器件的声光衍射效率、偏转角度、声驱动功率等参数。
Meanwhile, such parameters as diffraction efficiency, deflection Angle and driving power of device have been analyzed and computed theoretically.
稀土永磁同步电动机具有效率高、功率因数高的特点，是一种高效节能产品。
High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.
测量了各装置的输入输出功率，计算了能量转换装置的转换效率和传输过程中的能量损耗，提出了改进系统的有效途径。
Input and output power of instruments was measured, and efficiency of energy conversion instruments and energy loss was calculated, and effective methods were put forward to improve the system.
正确计算抽油机井的有效功率是计算抽油机井系统效率的关键。
Accurate calculating of the effective horsepower of pumping unit is the key to calculating the pumping unit system efficiency.
需要研究更加有效的无线资源分配及管理策略，以便在有限的带宽上达到更高频谱效率、更高的发射功率利用率以及更好的系统性能。
A more efficient radio resource allocation and management scheme should be proved to transmit with higher spectrum and power efficiency and higher system performance.
中继传输能够有效地提高系统功率效率以及传输容量。
Relayed transmission is an efficient method to improve the power efficiency and system capacity.
只有做到合理补偿无功功率，才能有效地维持和稳定系统电压水平，从而降低有功损耗，提高系统供电效率。
Compensating reactive power reasonably can keep system's stable voltage level effectively, so reduces the active loss, improves system's efficiency of power supply.
该腔既可有效地选定中心频率，又可望提高准单模运转的喇曼自由电子激光器电子效率及其输出功率。
The cavity can effectively choose center frequency, increase electron efficiency and output power of the Raman FEL operating in quasi -single mode regime.
软开关技术能够有效改善功率开关管的工作环境，降低开关损耗，提高变换器的效率。
Soft switching technique could improve the circumstance of the power switch, reduce the losses and increase the efficiency of the converter.
设计了可有效提高效率的小功率常规集成电源电路。
A high efficient power supply circuit for compact low power application is designed.
计算表明，采用的双联泵功率匹配系统能有效提高CVT液压系统效率。
From the simulation results, it is clear that the power matching system using double-pump can improve efficiency of the CVT hydraulic system greatly.
结果水泵有效功率和输入功率均随着电机频率的下降而不断降低，同时水泵效率也随着频率下降而降低。
The results show that available power and power input of water pump continuously decline with motor frequency reducing, and pump efficiency also decrease at the same time.
动力机与压缩机的分离为动力机的热效率和升功率的提高提供了有效途径。
The separation of power machine and compressor gives a available way of improving calorific efficiency and performance per litre.
大功率永磁直流电机具有效率高、体积小等许多优点。
High power PM DC motor has many advantages, such as high efficiency and small volume.
实验数据表明，该案例匹配方法切实可行，能有效提高匹配成功率，从而提高设备故障诊断效率。
The experiment data indicate that the way of case matching, which can improve probability of success matching , is feasible, and good fault-diagnose efficiency will be achieved.
管状固体激光器可获得较高的斜效率及电光转换效率，因此是人们寻求可获得高输出功率的有效器件之一。
Solid-state tube laser (SSTL) is one of available laser with high power output, for its high slop efficiency and electro-optical efficiency compared to the solid-state rod laser.
结论现代技术能有效提高120急救指挥中心的急救效率和成功率。
Conclusion Modern technology improve the efficiency and success of the first aid of 120 emergency command center.
结果表明，由于转移弧热效率较高，试样组织及显微硬度的变化对有效输出功率的变化非常敏感。
The results show that the microstructure and microhardness of the electroplated coatings are very sensitive to the effective output power for the transferred arc because of its high heat efficiency.
该技术可以帮助认识地层参数和压裂参数，提高压裂施工成功率和有效率。
This tech can help for knowing formation and fracture parameters, raise fracture operation successful ratio and affectivity.
该方案能在80 ~ 265V宽输入电压范围内得到稳定直流电压输出，具有效率高、总谐波畸变率低、功率因数接近为1等特点。
It can achieve a fixed output of DC voltage in the universal input range of ac 80 ~ 265 V. It owns the advantages of high efficiency, low total harmonic distortion, PF near to 1.
结果置管成功51例，成功率92.7%，引流有效率100%，末发生与手术操作有关的并发症。
Results 51 patients were successful, the success rate of procedure was 92.7%, and the effective rate of drainage was 100%, no complication happened.
过渡波导用于改善入射基模与出射偶对称模之间的场分布匹配，有效地提高了功率耦合效率，降低了分支耦合损耗。
The transitional guide is used to improve the mode field matching between both the waves supported by the incident and output waveguides.
在介质切伦可夫脉塞中加入背景等离子体可有效地提高器件的效率和微波输出功率。
The use of a background plasma in a dielectric Cherenkov maser can effectively increase the efficiency and the microwave power output of the device.
适当增加铁心长度可以有效提高电机效率和功率因数，但会导致启动转矩倍数和最大转矩倍数减小。
Increasing core length properly can raise motor efficiency and power factor, but it will reduce locked-rotor torque ratio and breakdown torque ratio.
根据系统效率及有效功率的定义，开展了井下效率的研究。
Based on the definition about the systematic efficiency and the effective power, completed the research about the efficiency under the shaft.
根据系统效率及有效功率的定义，开展了井下效率的研究。
Based on the definition about the systematic efficiency and the effective power, completed the research about the efficiency under the shaft.
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