attenuation curve
英 [əˌtenjʊˈeɪʃn kɜːv]
美 [əˌtenjʊˈeɪʃn kɜːrv]
衰减曲线
双语例句
- PID parameter tuning is performed based on attenuation curve to achieve the best control state.
采用衰减曲线法对被控对象进行PID参数整定，以达到最佳的控制状态。 - For the empirical beam hardening correction in computerized tomography ( CT), it is necessary to measure an attenuation curve for the material.
传统的射束硬化校正方法，通常需要针对每一种材料测量该材料对射线的吸收曲线。 - The result showed that there is a turn point on the ultrasonic attenuation curve.
试验结果表明，豆乳在凝固超声衰减曲线上有一明显转折点即凝固初始点。 - The backing cavity between the cylindrical shell and sound-absorbing material may lead to a flat acoustic attenuation curve in a relatively wide frequency range.
吸声材料背后增加空气腔，可以在较宽的频率范围内获得较为平坦的消声曲线。 - The spectrum of seis-mic wave reflects the filter and absorption effect on the earth. By use of the spectrum of main target layer data, the energy attenuation curve and compensation curve with frequency can be determined, which is the base of nonlinear scanning design.
非线性扫描设计的基础是，地震波的频谱反映了大地的吸收和滤波作用，利用主要目的层段的频谱特征，求出地震波能量随频率变化的衰减曲线，进而求出大地滤波的补偿曲线。 - We determine the factor of vibration isolation system with attenuation method and analyze the effect of vibration isolation system according to the curve of T_ ( d-λ).
通过对减振系统简化模型，采用自由振动衰减法求出系统阻尼系数，根据传递系数-频率比曲线分析减振效果。 - Using the way of mathematical analysis give out a formula of specific parameter β(γ) of spectral attenuation and the way of fitting and mathematical model of spectral attenuated curve and software process.
用数学分析的方法得出光纤光谱衰减特性参数β（λ）的表达式，给出光谱衰减曲线β（λ）的拟合方法、数学模型及软件流程。 - Test results show that two discontinuity points could be found in tensile stress-amplitude attenuation curve, they correspond to long time strength and creep failure limit respectively.
结果表明，拉伸过程中混凝土内部结构存在2个不连续点，它们分别与持续高技应力下的持久强度和徐变破坏极限较好地吻合。 - The source rupture model is constructed by the dynamic rupture analysis, as well as the peak acceleration attenuation curve and the acceleration Fourier spectra near the site.
根据断裂动力学模型、近场地面峰值加速度衰减曲线和场地附近的加速度谱来标定震源模型； - According to the electromagnetic wave attenuation problem in Plasma, in this paper, an attenuation model of vertical polarization and parallel polarization electric field are founded in Plasma, then, the attenuation curve in different polarization mode is emulated.
本文依据等离子体中电磁波的吸收衰减等方面的研究，对比垂直极化和水平极化的电场分量在等离子体中的衰减特性建立了模型，并通过仿真得到不同极化情况下的衰减曲线。 - When these are established, in further examination work on attenuators all one needs to do is just to measure and work out an attenuator's microwave relative attenuation distribution curve to sec if it meets the requirement established.
此要求确定后，在检验衰减器时，只需测绘它的微波相对衰减量分布曲线看是否符合要求即可。 - Having analysed the factors which causes the sonic log error, I proposed new methods for removing the influences of erosion and energy attenuation on sonic log curve. The corrections of the sonic log curves taken from more than 80 boreholes all brought good results.
本文通过对造成声波时差误差的特点分析，提出了一套直接对声波曲线进行侵蚀影响、能量衰减影响校正的新方法，经过对80余口井的声波曲线校正，均取得了良好的校正效果。 - The process of injection dispersion was monitored with a digital camera connecting to a computer that treated the video data stream synchronously to obtain the attenuation curve of relative deviation of the flow image's gray scale values.
实验采用以蓝色有机染料为示踪剂的流动显形技术，由摄像头实时摄取注入分散过程的动态图像，计算机同步分析视频流数据，从而以在线监测的方式获得流场图像的灰度相对方差随时间衰减的曲线。 - It is found that attenuation curve has a high and wide peak, the position and intensity of which change with the measured frequency and concentration of silver iodide, having a typical relaxation characteristics.
实验结果表明：在所测温区存在着一个宽而较强的超声衰减蜂，峰的位置及强度随频率和AgI浓度而改变，具有典型的弛豫特征。 - The attenuation curve is a simple field decline analysis method although there are some certain errors when attenuation curve applied in decline analysis.
虽然衰减曲线应用于递减分析会产生一定的误差，但仍不失为一种简便的矿场递减分析方法。 - Objective To shorten the observing time of the antibody attenuation trend after the measles live vaccine being inoculated, a power curve model of antibody level trend has been established and the antibody permanence been prospected in the paper.
目的建立接种麻疹减毒活疫苗（MV）后抗体水平变化趋势的幂曲线模型，预测抗体水平的持久性，缩短接种MV后抗体免疫持久性的实际观察时间。 - The results show that SiC is an excellent wide-frequency microwave attenuant, which determine the characteristic of attenuation curve.
结果表明，SiC是良好的宽频微波衰减剂，对衰减频谱曲线特征起决定作用； - Forty-six cases of SPN with pathological and ( or) clinical results were studied with dynamic helical CT scan. Pre-and post-contrast attenuation, peak height of time-attenuation curve, and ratio of peak height of the SPN to that of the large artery were evaluated.
并对其中46例经病理及临床证实的SPN的CT动态增强特点进行评价，评估其增强前后的CT值、强化峰值、SPN与主动脉的强化值比。 - The overpressure expression characterizing the gas detonation attenuation is inferred during detonation wave propagation in excavation roadway. Moreover, the overpressure attenuation is expressed in the Hugoniot curve of overpressure and specific volume.
另外，掘进巷道瓦斯爆轰波传播过程中，可以根据已知波前状态参数推导出能表征爆轰衰减规律的超压表达式，同时利用Hugoniot曲线对超压的衰减进行了描述。 - And the author on the first time brings forward the method of determine the angle of zero power in Direct Current Attenuation Method by means of curve imitation, which provides a novel method to solve this difficult problem.
首次提出了在直接负载法中利用曲线拟合的处理方法来确定零功角状态的问题，为解决此难点问题提供了一种新的方法。 - So, in the actual testing, measuring the relative attenuation curve can test the matching performance fast and effectively and also provide powerful gist for improving the attenuation making technology. 3.
因此，在实际检测中，通过测试衰减器相对衰减量分布曲线能够快速，有效的检测衰减器的匹配性能并为衰减器制作工艺的改进提供有力依据。 - Obtaining the instantaneous seismic wavelet through the spectral decomposition to the seismic data, thus get the absorption coefficient by fitting the attenuation curve of low and high frequency part of the instantaneous wavelet spectrum to realize the reservoir fluid identification.
通过对地震资料进行瞬时谱分解，求取瞬时地震子波，然后分别拟合子波低频段和高频段的衰减曲线求取吸收系数，实现对储层流体的识别。 - According to different experiment objects, the spectrometer can measure accurately the fluorescence attenuation curve and time resolution spectrum in the range of ps, ns and μ s by choosing suitable laser pulse interval.
按照不同的实验对象，选择合适的激光脉冲间隔，光谱仪可以准确测量皮秒、纳秒和微秒时间范围的荧光衰减曲线和时间分辨光谱。 - The co-existence of Biot dissipation mechanism and thermal relaxation mechanism results in the appearance of two attenuation peaks in the attenuation curve of the saturated rock, i.e., the Biot peak and the thermal relaxation peak.
Biot耗散机制和热弛豫机制的共同存在使得饱和岩石的衰减曲线出现两个衰减峰，即Biot峰和热弛豫峰。 - In the numerical simulation of the absorption and attenuation the curve of the porosity as a function of depth derives from reported volume modulus model.
在吸收衰减的数值模拟中还需要孔隙度随深度的变化曲线作为输入，而这里的孔隙度随深度变化曲线采用了前期研究的结果即体积模量模型。 - Using the power function to fit capacity attenuation curve and fitting parameters by the experimental data, the ultimate expression is obtained at last. Then it is proved to be reasonable and correct by the experimental data.
运用幂函数对容量衰减曲线进行拟合并通过实验数据进行参数的修正，得到电池容量衰减的最终表达式，然后利用电池充放电循环试验，验证电池容量衰减率表达式的正确性和合理性。 - The experimental date is fitted by least square method and by derivation the velocity attenuation curve of the shock wave is got.
对实验数据使用最小二乘法拟合，并对相应曲线求导，得出冲击波速度随传输距离的衰减变化情况。 - According to the best work area of the current and temperature of the battery, the battery capacity attenuation curve will be showed through testing the battery characteristics in different conditions.
按照工作电流和温度的最佳工作区域，通过电池在不同工况下的充放电循环试验，采集到电池容量衰减的变化曲线。 - Practice application shows that capacity attenuation curve method than the production decline curve method has many incomparable advantages.
应用实践表明，产能衰减曲线法比产量递减曲线法具有许多无可比拟的优点。 - Proposing the method for determining order in the application of AR model. Simulations and experiments show that. adopting high order in AR model can smooth. attenuation curve and improve measuring precision.
将AR模型引入BUA的测量，并提出了针对BUA测量AR模型定阶方法，仿真和实验表明采用高阶AR模型可以平滑衰减曲线，提高测量精度。