由于土壤温度的全年温度变化特性，地源热泵比空气源热泵具有更高的COP。
The COP of the ground source heat pump is higher than that of the air source heat pump because of the soil annual temperature change characteristics.
科学家将研究分析微波背景辐射中几百万分之一的温度变化，看是否能从中找出它的这些特性。
They will examine temperature variations in the microwave background amounting to a few millionths of a degree, to see whether they can discern such features in it.
设备寿命诊断主要研究设备部件在非稳态下的温度及热应力变化规律、金属材料的疲劳特性以及部件的寿命损耗。
Equipment life-span diagnoses mainly research the variation rules of unit part in unsteady temperature and thermal stress, fatigue characteristic of metals and life deterioration of equipments.
方法：该电路利用二极管的结电压随温度变化的特性实现呼吸信号的检测。
Methods the respiratory signal is detected by the characteristics of diode junction voltage with temperature changes.
首先，通过加速试验获得了传感器特性的时漂以及受温度影响的变化规律，并据此构建了样本集。
First, the time-drift of sensor's characteristic and its change law with temperature are obtained by the accelerated test, then the sample set is established.
该阀不受蒸汽压力、温度变化的影响，具有良好的工作特性。
The changes of steam pressure and temperature canont influence the trap. It sas good working characteristic.
随埋藏深度的不同，地下原油温度有很大的变化，造成其核磁共振弛豫特性差别较大。
Nuclear magnetic resonance relaxation characteristics of crude oil change with temperature varying at different formation depth.
研究表明该种结构在温度变化和外荷载等作用下的力学特性与悬索桥有明显的不同。
The results show that aerobus suspending cable structure is different from suspension bridge in mechanical properties when it acted by external factors, such as temperature change, load, etc.
采用有限元法对雁形板屋盖结构的空间受力特性进行了分析计算，并着重考虑了温度变化对板截面应力的影响。
In this paper, the finite element method is used to analyze the behavior of the prestressed V-shape slab Roof structure, especially the effect of temperature change on the stress of slab.
研究在辐射和对流同时作用下肋根温度作周期性变化时矩形肋片的传热特性。
The heat transfer performance of a rectangular fin during periodic fin base temperature change is studied under simultaneous action of radiation and convection.
试验研究了摩托车在EUIII测试循环工况下的排气温度变化，以及对于两种氧传感器起燃时间、陶瓷体温度变化、动态响应特性和排放的影响。
The exhaust gas temperatures rise and variation during EUIII test cycle and its impact on the light-off time, ceramic temperature, dynamic response behavior and emission results were studied.
对蜂王浆进行了微波冷冻干燥的实验研究，获得蜂王浆冻干过程中温度的变化规律和相应的干燥特性曲线；
The experimental investigation on microwave freeze drying of Royal Jelly was conducted. The temperature variations and drying characteristic curves during the drying process were obtained.
应用二维场量分布进一步得到了平均磁流阻率随电流密度和温度的变化特性。
The average flux-flow resistivity depending on the average current density and temperature is also calculated with above distributions.
热电阻是利用物质在温度变化时自身电阻也随着发生变化的特性来测量温度的。
Thermal resistance is when the temperature changes its resistance along with the characteristic changes of temperature measurement using the material.
本文还研究了在微热板温度按照一定规律变化条件下的传感器动态响应特性。
The gas sensor's dynamic response characteristics are also studied while the operating temperature is changed with some rule.
针对压力传感器输出特性受温度变化和电压波动影响的问题，提出了应用支持向量机对压力传感器输出特性进行非线性补偿的校正模型。
In view of characteristics of pressure sensor affected by temperature changes and voltage fluctuation, a correction model of pressure sensor is presented based on Support Vector Machine.
本文分析了环境温度变化对断路器动作特性的影响，提出了基于神经网络的断路器分闸速度受环境温度影响的调节方案。
Based on the Artificial Neural Networks, an adjusted scheme of the opening velocity of circuit breaker under the influence of the ambient temperature is put forward.
分析了标准大气模式在描述中层大气温度分布平均特性和变化规律上的局限。
The limitations of standard atmosphere mode in describing the characteristics of middle atmosphere are discussed.
火电厂主蒸汽温度具有大迟延、大惯性的特点，且对象特性随负荷变化较大等因素，很难实现稳定和高性能的控制。
The temperature of the main steam system is a tipical control of long time-delay, long inertia time and parameter-varying, so it is difficult to achieve a high-quality effect.
结果表明，对恒壁温情况必须考虑垢层表面温度随时间的变化，这一变化是导致结垢过程渐近特性的重要原因之一；
The results show that the variation of the scaling layer surface temperature is one of the major factors that cause the asymptotic tendency of scaling process.
由于小型断路器的双金属元件易受环境温度变化的影响，其脱扣特性也将随之改变。
Because bi metal element in miniature circuit breaker is easily affected by ambient temperature change, the protective characteristic of overload will be changed with ambient temperature change.
试验发现，单晶DD3的屈服特性随温度、应变率、晶向而变化。
Test results show that the yield characteristics of DD3 single crystal depend on test temperature, strain rate, and orientation of samples.
该制冷机的工作特性表明在不变蒸发温度时，制冷机冷量随发动机排气功率变化。
It is concluded that the refrigerating capacity at constant Evaporating temperatures varies with the engine exhaust power output.
从理论上分析了掺铒光纤放大器（EDFA）增益的温度特性与铒光纤发射截面和吸收截面的关系，并通过实验研究了其增益随温度的变化关系。
The relationship between the temperature dependence of Erbium-doped Fiber Amplifier(EDFA) gain and emission and absorption cross-section of Erbium fiber is analyzed theoretically.
研究了聚对苯二甲酸丙二醇酯（PTT） ，PET ，CDP在不同温度和时间下的特性粘数和端羧基含量的变化。
The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.
本文讨论了低温下P -N结的正向电压降v _ F随温度t变化的特性。
The temperature behavior of the forward voltage VF of the P-N junction is discussed.
在高温特性中，通过中小功率测试仪对IGBT在不同温度下瞬态特性的变化，总结出igbt工作温度对于IGBT自身性能的影响。
In the high temperature characteristics, through testing the change of different temperatures on the transient characteristics, conclude the effect of IGBT's temperature on it's function.
在高温特性中，通过中小功率测试仪对IGBT在不同温度下瞬态特性的变化，总结出igbt工作温度对于IGBT自身性能的影响。
In the high temperature characteristics, through testing the change of different temperatures on the transient characteristics, conclude the effect of IGBT's temperature on it's function.
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