功率效率和频谱效率一般不能两全齐美。
Power efficiency and the general efficiency of spectrum-the United States can not be both loyal and filially pious.
同样，高的功率效率也要牺牲一定的频谱效率。
Similarly, the high power efficiency also needs to sacrifice certain frequency spectrum efficiency.
由此得到的热机功率效率特性与实际热机特性相同。
The power versus efficiency characteristics of the model is the same as real heat engine.
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.
最后引入功率配置来进一步改善系统误码率性能和提高功率效率。
Power allocation is adopted in the scheme to achieve better bit error rate (BER) performance and higher power efficiency.
FQPS K是针对高频谱效率和高功率效率要求产生的一种调制方式。
FQPSK is a modulation technique that fits for high spectrum efficiency and high power efficiency request.
雷声公司开始对它进行测试，检证了它们的功能，确认了最大的数据流量和功率效率。
The company has begun tests on prototypes of the polymorphic MONARCH processors to verify they will function as designed and to establish their maximum throughput and power efficiency.
在数字电视前端采用的数字调制方式需要具有良好的带宽效率和功率效率。
The digital modulation applied in the front of HDTV needs good band efficiency and power efficiency.
针对这一问题，该文提出了一种基于功率效率最优的联合子载波功率分配算法。
To deal with this problem, in this paper, a novel joint power and subcarrier allocation scheme in uplink OFDMA systems is proposed based on game theory.
所得结果不同于仅存在热阻损失时的内可逆热机的功率效率特性，且与实际热机特性相一致。
The power versus efficiency characteristics obtained here is qualitatively different from that for an endoreversible heat engine and is in agreement with that for a real heat engine.
联合频率相位调制(JFPM)同时利用频率信息及相位信息，具有较高的频带利用率和功率效率。
Joint frequency and phase modulation (JFPM) utilize frequency and phase information to realize higher efficiency in the frequency and power.
在物理层技术层面上，具有高频谱效率和功率效率，并能适应环境和业务变化的技术成为研究的热点。
From a physical layer aspect, those techniques feature high frequency and power efficiency, and are able to adapt to changing environments and services, will win in the long run.
最后，论文以ARAPA原模图ldpc码为分量码，结合多级编码调制(MLC)技术，设计了一种兼顾带宽和功率效率的编码调制系统。
Finally, a multilevel coding (MLC) scheme with ARAPA protograph LDPC codes as component codes is designed. This scheme takes both bandwidth and power efficiency into account.
综合设计和开发活动的目标是为了进一步改善功率密度，提高能量效率并减少制造成本。
The objective of the integrated design and development activity is to further improve power density, increase energy efficiency, and to reduce manufacturing cost.
当电源调制和轮廓调制协同工作时，功率放大器的动态范围和效率可以进一步提高。
When supply modulation and contour modulation are working in concert, the dynamic range and efficiency of the power amplifier can be further improved.
第一阶段将制造出具有200毫瓦平均功率同时具有4%插接效率的热电制冷激光器，并将其封装为1瓦的模块。
Phase I calls for making a 200 mW average power, thermoelectrically cooled laser with at least 4 percent wall-plug efficiency (WPE), and planning for combining those into a 1-watt module.
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 company boasts that it produces over 300 watts (300W) of power in the C band, with 60% efficiency of power conversion.
这款灯泡比标明的功率略低(符合加州法律要求的效率应该略大——当然不是很大)。
This is part of a new wave of incandescents that come in at slightly lower wattages than their claimed equivalents (to comply with California law requiring greater-but not great-efficiency).
引擎效率不会高于电池，不过可以轻松保持当前功率跑上足够长的一段路。
The engine doesn't top off the battery but simply runs long enough to maintain performance.
全部使用高功率钕磁铁，提供最高的效率和更好的声音。
All use very high power neodymium magnets to provide maximum efficiency and better sound.
在QPC公司的内部演示中，在1064nm波长处，单频功率超过3瓦，转换效率高于50%。
QPC has internally demonstrated single-frequency powers exceeding 3 watts at conversion efficiencies greater than 50 percent at 1064 nm.
负载阻抗匹配的目的是为了使感应加热电源能够输出额定功率、提高效率。
Load matching is intended to make induction heating power to the rated output power, and improve efficiency.
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.
本文中将倍频晶体分割成无数多个小倍频单元，并导出每个倍频单元中的谐波功率与倍频效率。
In this paper, we divided the double frequency crystal into numerous small double frequency units and derived the harmonic power and the double frequency efficiency in each unit.
研究光纤放大器的耦合效率以及影响输出功率的因素。
The coupling efficiency of the amplifier and the factors affecting the output power improvement are investigated.
电动机功率密度大、效率高。
分析了其特性，包括编码效率、误码特性、功率谱、帧同步一次通过捕获特性等。
Its properties are analyzed, such as code efficiency, error Bit rate, power spectrum, the acquisition probability of the first frame marker.
该码型具有和原始AMI码类似的功率谱，尽管其编码效率不高，其快速同步捕获的特性可以避免数据的丢失，提高了数据的可靠性。
This type of code has the similar power spectrum to the original AMI code, and though its code efficiency decreases, rapid synchronization will avoid losing data and increase the credibility of data.
正确的呼吸是至关重要的，并帮助您的运动是处于最大功率和效率的。
Proper breathing is essential, and helps you execute movements with maximum power and efficiency.
导出了该模型下输出功率、效率和生态学目标函数的表达式。
The analytical expressions of power output, efficiency and ecological objective function are derived.
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