For the complexity of efficiency conversion of prototype and model hydraulic turbines many calculation formula are put forward but there is not universal formula.
由于原型与模型水轮机效率换算的复杂性，尽管已提出许多计算式，但至今仍未有一个被一致确认的统一公式。
The problem has been that high temperatures are necessary to power heat-based conversion systems, yet solar cell efficiency rapidly decreases at higher temperatures.
问题是热能转化系统需要更高的温度，而太阳能电池的效率在高温下迅速降低。
A little over a decade ago, the best photovoltaic efficiency, or sunlight conversion into electricity, was 10 percent, and now it can reach 40 percent.
大约十年前，光电效率(即光能转换成电能的转换率)只有10%，而现在已经能达到40%。
The company boasts that it produces over 300 watts (300W) of power in the C band, with 60% efficiency of power conversion.
公司称，已开发成功C波段，功率为300W，功率转化效率为60%的放大器。
The most efficient solar panels currently in use (on the space station) are costly, and their conversion efficiency is about twenty percent, which is not very much.
现在使用中的最高效的太阳能电池板（在空间站服役）成本高昂，但是能量转换效率并不是很高，只有20%。
Researchers are applying the design to semiconductor materials to make solar cells that they hope will save money on materials costs while still offering high power-conversion efficiency.
研究者正把这项设计应用到制造太阳能电池的半导体材料上，这样他们希望在节省材料成本的同时仍可以提供高效率的能量转换。
The decoder determines the optimum conversion ratio to improve the efficiency of system from the relation between the input and output voltage.
首先采用译码器对输入和输出电压进行判比，确定最优的转换系数，提高了系统的效率。
But solar energy photovoltaic power cost is high and its conversion efficiency is low.
但太阳能光伏发电存在成本较高和能量转化效率较低的问题。
High conversion efficiency, energy conservation.
转换效率高，节约能源。
A predicted conversion efficiency limitation of 20% for silicon solar cells in practical devices was made by photovoltaic specialists.
光伏界的专家们曾经认为硅太阳电池转换效率在实际器件上的极限为20%。
As long as the continuous improvement "formula" nano "sandwich", the photoelectric conversion efficiency can improve again.
只要不断改进“配方”，纳米“夹心”的光电转化效率就能一次次提高。
Using the fiber laser as light source, Stable performance, High photoelectric conversion efficiency, Low energy consumption.
采用光纤激光器作为光源，性能稳定，光电转换效率高，能耗低。
An analog maximum power point tracking (MPPT) controller integrated circuit (IC) based on open-circuit voltage method was proposed to enhance the photovoltaic conversion efficiency of solar cell.
为提高光伏电池的光电转换效率，设计一种基于开路电压法的光伏电池最大功率点跟踪(MPPT)控制芯片。
Photothermal techniques can provide the information that pure optical spectroscopy is not able to give, such as optical-to-thermal energy conversion efficiency.
光热技术可以提供纯光学光谱学所无法提供的、类似光-热能量转换效率之类的信息。
As a result, the efficiency, in the realtime conversion system between PCM and CVSD on TMS320VC5416 hardware platform, is improved.
从而提高了在以TMS320 VC 5416为硬件平台的PCM和CVSD实时相互转换系统的效率。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
采用德国西门子IGBT变频，电压反馈串联谐振电路。变换效率高达97.5%以上。
The result indicates that the slow wave structure significantly improves the microwave output power and conversion efficiency. The simulated microwave frequency agrees well with the predicted value.
研究结果表明这种慢波结构相对原结构在微波输出功率和转换效率上都有很大提高，微波工作频率与预测相符合。
The signal power output of high conversion efficiency is depended on the optimum crystal lengths, pump intensity and signal power.
高转换效率的信号光输出取决于抽运光和初始信号光的强度及晶体长度的最佳优化值。
The competing processes and saturation effect on conversion efficiency have been analyzed.
对影响转换效率的有关竞争过程和饱和效应作了分析。
The test results have shown that the thermoelectric conversion efficiency of segmented thermoelectric unicouple made by designed element reached to 7.31%.
测试结果表明：由设计的元件制作出的分段温差电单偶的热电转换效率达到了7.31%。
Dietary supplementation with citric acid and acid Lac could improve feed conversion efficiency.
日粮中添加乳酸宝和柠檬酸可以提高饲料的转化效率。
The Korean company said it aims to top the solar cell market in 2015 and further raise its solar cell conversion efficiency for mass production.
该韩国公司称它的目标是在2015年成为太阳能电池市场领导者，并进一步提高其太阳能转换率以适应大规模生产的需要。
How to improve the conversion efficiency of light to electricity becomes the research hotspot.
因此如何进一步提高其光电转换效率成为研究的热点。
The mechanism of food effect on carbon growth was decided by assimilation ratio and conversion efficiency.
饵料对碳生长的影响机制是由碳同化率和转换效率决定的。
Adoption of international most advanced production technology and equipment to produce high conversion efficiency of crystalline silicon solar cells.
国际最先进的生产技术和设备，通过生产高结晶硅太阳能电池的转换效率。
The effects of the velocity distribution uniformity on conversion efficiency and durability and pressure loss on engine power and fuel economy have been discussed.
讨论了流速分布均匀性对催化转化器转化效率和载体寿命的影响；压力损失对发动机动力性、经济性的影响。
Conversion efficiency of energy is an important characteristic for the piezoelectric components.
用作转换器的压电元件的一个重要特性是衡量其能量转换效率。
By simplifying the coupled equations of DFG in waveguides, we provide analytical expressions of the conversion efficiency.
通过对波导中差频耦合方程的简化，推导出了转换效率的解析表达式。
Abstract: this paper mainly introduces the PN of solar cell structure, working principle, classification method and improving the efficiency of conversion.
摘要：该文主要介绍太阳能电池的PN结构、工作原理、分类和转化效率的提高方法。
Abstract: this paper mainly introduces the PN of solar cell structure, working principle, classification method and improving the efficiency of conversion.
摘要：该文主要介绍太阳能电池的PN结构、工作原理、分类和转化效率的提高方法。
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