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。
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。
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。
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。
Test results demonstrated that the converter has the advantages of simple topology, high power density, high conversion efficiency, high power factor, uninterruptible power supply, low cost.
试验结果表明，这种变换器具有电路拓扑简单、功率密度高、变换效率高、功率因数高、不间断供电、成本低等优点。
The double-clad fiber laser has the advantages of simple structure and high reliability, high output power, high conversion efficiency, high beam quality.
它具有结构简单紧凑、输出功率高、稳定可靠、光电转换效率高、光束质量好等优点。
The segmented thermoelectric element has been paid much attention in the world because of its high thermoelectric conversion efficiency in wide temperature scope.
由于分段温差电元件能够在较宽的温度范围内很大程度地提高热电转换效率，因此，在世界范围内受到广泛的关注。
The results show that the function of the land ecosystem is low, the energy conversion efficiency and the stability is not high.
结果表明，该县土地生态系统功能低下，系统的能量转化效率及稳定性较低。
Conversion efficiency and pulse wave-forms will be affected by many factors due to the wide spectrum range and high intensity density of ultra-short pulses.
由于超短脉冲具有较宽的光谱范围及较高功率密度，倍频转换效率和谐波脉冲波形将受到许多因素的影响。
High efficient laser could be obtained by up-converting, so a most important task is to improve the efficiency of up-conversion.
通过对上转换的研究可以得到效率更高的激光器，而提高上转换效率是当前研究的重中之重。
As the power efficiency of traditional silicon-based solar cell is low and also it costs high, concentrator photovoltaic systems with high conversion efficiency will become the main direction.
由于传统的硅基太阳能电池发电效率低、成本高，因此高转换效率的聚光太阳能系统将成为研究太阳能发电的主要方向。
The method for building complex carrier has high efficiency of rearrangement, connection and conversion and is applicable to building various complex carriers.
应用上述方法构建复杂载体，其重组、连接、转化效率高，适用于构建各种复杂的载体。
The converter provides high conversion efficiency with a simple power component design.
在简单的电力部件设计的情况下，转换器提供了高的转换效率。
The novel wind energy conversion system is characterized by high efficiency, fast dynamic response and so on.
以电力电子变流技术为基础的能源变换系统具有风能利用效率高，动态响应快等特点。
The basic factors related with photonic information processing are ultrahigh response speed, low photon power threshold, high conversion efficiency and relatively low device cost.
光子信息处理的基本要素是超高速响应速度、低光子功率阈值、高转换效率以及较低的器件成本。
The invention relates to a high efficiency heat engine having combined heat-work conversion process, especially an heat engine integrated with multiple working strokes and multiple working media.
本发明涉及带组合式热功转换过程的高效率热机，尤其是集成了多种做功冲程和多种工质的热机。
Fixed bed gasification is a reactor that has mature technology, high heat efficiency and high carbon conversion. And it is the best widely used.
固定床气化炉是一种技术成熟、应用最广的高热效率和高碳转化率的反应器。
The dye-sensitized solar cell has a high voltage and high photoelectric conversion efficiency.
该染料敏化太阳能电池具有高电压和高光电转化效率。
Improving the traditional tracking control circuit and power combination to improve the system's energy conversion efficiency about 7 to 10 percentage points, with high stability.
改进传统的控制电路与功率跟踪相结合，提高系统的能量转换效率7到10个百分点，具有较高的稳定性。
The pressurized entrained flow gasification for pulverized coal is featured with its low consumption of materials, high carbon conversion and heat efficiency, and its excellent flexibility to coals.
气流床粉煤加压气化技术具有原料消耗低，碳转化率高，热效率高，煤种适应性强等优势。
The solar conversion device with the novel structure provided by the invention has strong capacity of light absorption and high photoelectric conversion efficiency.
本发明提供的这种具有新型结构的太阳能转换装置，光吸收能力强，光电转换效率高。
In fact, the conversion rate and efficiency of such emails are "very high," significantly more effective than on-site recommendations.
事实上，此类邮件的转化率和效率“非常高”，比网站推荐的效率要高得多。
The motivation for the research and development of fuel cells is mainly related to their potentially light weight, low volume, and high efficiency of energy conversion, etc.
燃料电池研究与开发的原因主要在于其质量轻、体积小、能量转换效率高等。
NREL wind turbine airfoil can better meet the requirements of the aerodynamic performance than the traditional airfoils, and the airfoil has a high energy conversion efficiency.
NREL风力机专用翼型较传统翼型更能满足气动性能的要求，并且翼型具有较高的能量转换效率。
The paper presents the application of the technology of frequency conversion in the air-condition. It has the high efficiency, saving the energy, protection of the machine.
本文只论述变频技术在空调系统中的应用，它具有高效、节约能源、保护电机的优点。
The mutual promotion between carbon dioxide and methane in reforming process should be considered in order to obtain high conversion of CH4 and CO2, and high chemical energy efficiency.
为了得到较高的转化率和化学能效值，应采用甲烷和二氧化碳具有相互促进作用的重整反应过程。
Products of the project are intelligent control devices with environmentally adaptive capacity, high energy conversion efficiency, high stability.
项目产品是具有环境自适应能力、高能量转换效率、高稳定性的风光能源智能控制装置。
For RF PA, always require it can output a certain power within a range of frequency, at the same time meeting the system nonlinear requirements and have high conversion efficiency.
射频功率放大器总是要求在一定频率范围内输出一定的功率，同时满足系统的线性度和高效率要求。
For RF PA, always require it can output a certain power within a range of frequency, at the same time meeting the system nonlinear requirements and have high conversion efficiency.
射频功率放大器总是要求在一定频率范围内输出一定的功率，同时满足系统的线性度和高效率要求。
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