The power coefficient of reactivity (PCR) is a measure of whether a particular reactor's nuclear neutron population will tend to increase or decrease after an increase in the reactor's power.
PCR是一座反应堆的核中子数会在反应堆能量增加后增加或减少的衡量标志。
The electric voltage echo coefficient provides dependable theories to the power cable fault location.
电压反射系数为电力电缆故障测距提供了可靠的理论依据。
Ben designed the fairing shell to have a drag coefficient that would allow me to achieve at least 50 KPH on less than 130 watts of power.
本设计的整流罩外壳有阻力系数，使我实现至少50公里不到13 0瓦的功率。
Theory and experiment show that bandwidth of FOPA depends on pumping wavelength and pumping power, optical fiber nonlinear coefficient as well as dispersion characteristics.
理论和实验研究表明，参量放大的带宽取决于泵浦波长和泵浦功率、光纤非线性系数、光纤的色散特性。
The cavity pull effect, microwave power shift, light shift and temperature coefficient which mostly influence the performance of RAFS are studied.
研究了腔牵引效应、微波功率频移、光频移和缓冲气体温度系数对铷频标输出频率的影响。
Engine using variable valve timing technology can improve the intake charge, so that coefficient of charge increase, engine torque and power can be further improved.
发动机采用可变气门正时技术可以提高进气充量，使充量系数增加，发动机的扭矩和功率可以得到进一步的提高。
Based on the concept of activation energy and microwave absorption power density, the formula of diffusion coefficient due to the effect of microwaves is derived.
利用活化能的概念和微波吸收功率密度表达式得到微波作用下的扩散系数表达式。
On the basis of a large number of field data, the regression equations of displacement coefficient, down-hole power loss and surface efficiency for pumping wells are established.
本文以大量的现场测试数据为基础，建立了抽油机井排量系数、井下功率损失及地面效率的回归方程；
In the measurement of sound absorption coefficient in random incidence and determination of sound power levels of noise sources, the reverberation room is used very extensively.
混响室是声学专业的实验室用房，它在测量声波无规入射时材料的吸声系数和测量噪声源的声功率级中得到了广泛应用。
The absorbing property of radar absorbing material is usually expressed by the power reflection coefficient of the absorbing material toward the electromagnetic wave.
雷达吸波材料的吸波性能通常以吸波材料对电磁波的功率反射系数来表示。
Concept and calculation method of synthetic power coefficient are proposed.
提出了综合功率系数概念及计算方法。
The adjoint coefficient of sound radiation modes is proportional to the corresponding sound radiation power.
声辐射模态伴随系数与对应的辐射声功率成正比。
Inner correlation coefficient and heritability of body composition and anaerobic power were estimated by heredity statistics.
数据经遗传统计学处理，估算出体成分及无氧功率的对内相关系数和遗传度。
The influence of solidity and aspect ratio on power coefficient of H-type vertical axis wind turbine, and the change of attack Angle with tip speed ratio were analyzed.
采用多流管模型分析了H型垂直风力机展弦比和实度对其功率系数的影响，并对叶片旋转过程中攻角随尖速比的变化进行了分析。
In this paper, the rotor power transfer coefficient is determined from the point of helicopter flight dynamics.
文章详细地介绍了从飞行力学的角度来确定直升机平直飞行时的旋翼功率传递系数。
The experimental results show that, within the error allowed, this system maintains reflection coefficient at around 0 automatically and achieves the best transmission for RFID power.
实验结果表明，在误差允许范围内，该系统自动将反射系数稳定在0点的周围，实现了RFID读写器功率的最佳传输。
The effects of load, effective face width and power partition coefficient on the reliabilities of the system and components were studied through some examples.
结合实例，研究了负载、有效齿宽、功率分配系数等因素对系统及其零件可靠性的影响。
The intake port performance (swirl number, flow coefficient) has an important effect on power, economy and emissions of diesel engine.
进气道性能(涡流强度、流量系数)对柴油机的动力性、经济性和排放有重要影响。
The power coefficient of HFETR is defined and measured.
本文定义并测量了HFETR的功率系数。
The VCO module makes use of differential coefficient circuit design technology to lower the effect of power resource on the clock signal input shake.
系统VCO模块采用微分电路设计技术，可将电源噪音对时钟信号输出抖动的影响降至最低。
The influences of the PTCR's characteristic parameters such as switching temperature, room resistance of samples, and dissipation coefficient, etc. on the thermal power of heaters are investigated.
主要研究了PT C材料的开关温度、样品的室温电阻及耗散系数等特性参数对发热体功率的影响。
Precise dc low resistance box is formed by material of low temperature coefficient high power resistance and high stability.
型精密大电流低阻箱采用温度系数低、电阻率大、稳定性高的材料精制而成。
Precise DC low resistance Box is formed by material of low temperature coefficient, high power resistance and high stability.
型精密大电流低阻箱采用温度系数低、电阻率大、稳定性高的材料精制而成。
It is very important for the decrease of the composite power coefficient to increase power density, especially increase volumetric power density.
提高功率密度特别是提高体积功率密度对于减小综合功率系数非常重要。
In order to save power and use fuel more efficiently, the relationship between the rotator's traction power coefficient and the rotator width was studied in this article.
为节省动力和更有效地利用燃料，对旋耕机的牵引功率利用系数与旋耕进距的关系进行了研究。
The power attenuation coefficient and the change of the coherence of the laser through the sediment-laden water are obtained in the experiment.
实验获得了激光穿过浑水的功率衰减系数和相干性变化。
The regression coefficient between corneal power and the refractive error increased from apex to peripheral area.
角膜中央到周边曲率与等效球镜度的回归系数逐渐增加。
This paper analyzed the major hazards and accident risks. The risk index and power coefficient were presented and referenced value and formula were defined.
分析了煤矿重大危险源与事故风险，提出了煤矿危险性概率指数和风险权系数，并给定了参考值和计算公式。
This paper analyzed the major hazards and accident risks. The risk index and power coefficient were presented and referenced value and formula were defined.
分析了煤矿重大危险源与事故风险，提出了煤矿危险性概率指数和风险权系数，并给定了参考值和计算公式。
应用推荐