特征参数

The system parameters of the compound pendulum are calibrated in slow loading condition; and the maximal angle is measured in impact loading condition.

本文分析了编码器的基本特征，建立了一套以编码器为核心的复摆冲量测量系统，给出了编码器在冲量缓慢加载阶段复摆系统参数标定及冲击加载阶段最大摆角测量的应用结果。

Key words:incremental revolving encoder;compound pendulum;impulse;slow loading;impact loading

本文分析了编码器的基本特征，建立了一套以编码器为核心的复摆冲量测量系统，给出了编码器在冲量缓慢加载阶段复摆系统参数标定及冲击加载阶段最大摆角测量的应用结果。

This paper discusses the source rocks, geochemical characteristic, oil-rock correlation, oil migration direction and favorable oil accumulations in Shuangtai-Hekou area, Liaohe basin, based on maturity parameters of oil from different wells, the abosulte concentration of nitrogen compound in oil, isomeride proportion of alkyl carbazole compounds with different polarity, and regional geology background.

在辽河断陷西部凹陷河口地区烃源岩和原油地球化学特征剖析及油源对比研究基础上，依据平面上不同井原油成熟度参数变化趋势，油藏剖面上不同原油含氮化合物绝对浓度及不同极性烷基咔唑类化合物异构体比值的变化规律，并结合区域地质背景，研究了本地区主力油源区、油气运移方向和有利油气聚集区带。

Pixel values in an image window are taken as a realization of a BN, and the structure and parameters of BN for each texture class are then studied. The conditional distribution probability of the pixels is used as the feature for texture classification.

把纹理图像在一个窗口内各个像素的灰度值看作贝叶斯网络的一次实现，通过训练得到各类纹理所对应贝叶斯网络的结构和参数，用纹理图像像素点在网络中的条件概率分布作为特征进行纹理分类。

By analyzing the characteristics of seismic rupture process and considering the three hypothetical conditions of similarity satisfied by earthquake,i e geometrical, stress environment and dynamic similarities of fault planes, the authous have studied the scaling analysis of similarity between earthquakes with various magnitudes and set up the scaling relation between sou.

本文根据Heaskel二维矩形地震破裂模式，导出了以ω立方的波谱衰减，在分析地震破裂过程特征、考虑三个主要的相似性假定基础上，即假定地震满足断层面几何相似、应力环境相似和动力学相似条件，研究了大小地震相似性问题的标度分析，建立了地震破裂和源参数之间的标定律关系。

The parameters include soil water characteristic curve, hydraulic conductibility and water diffusivity.

准确获取能代表田间土壤条件的土壤水分运动参数土壤水分特征曲线(或比水容重C，土壤导水率K和土壤水分扩散率D是模拟土壤中水和溶质运动的基础。

Conformal mapping method is introduced into the analysis to calculate the characteristic values of the transmission line, e.

在分析中引入了保角映射等数值方法，给出了有效介电常数εeff、特征阻抗Z、单位电容C等传输线指标随几何参数变化的计算公式。

The reasons are that GM (1, 1) model groups have constant coefficient properties while their parameter distribution is"grey", so they can keep original system characteristics and reflect system reality.

这是因为灰色预测法所建模型具有常系数性质，但其参数分布是"灰"的，因此可保持原系统的特征，能较好地反映系统的实际情况，故建模的精度较高。

The text introduces the probability of random events and issues of counter-examples; discrete random variables related to the distribution and continuous random variable distribution of counter-examples; independence and related issues in the Phase capacitive on the counter-examples; number of characteristics of the random variable The counter-examples of; parameters estimates and assumptions in the anti-testing case of problems.

该文主要介绍了随机事件及其概率问题中的反例；有关离散型随机变量分布和连续型随机变量分布中的反例问题；独立性与相关性相容性问题中的反例介绍；有关随机变量数字特征的反例探讨；有关参数估计与假设检验中的反例问题。

Rinted-circuit board air-core coils designed by using CAD tools and fabricated by adopting advanced PCB manufacturing technology are good in measurement accuracy and consistence of products parameters. But the characteristics of limited turns-density and large magnetic induction intensity grads on coil cross-section make great influence on the continuous uniform distribution of coil turns along the coil circumference and cause its discrete distribution.

CB空心线圈采用CAD方法设计和先进的PCB加工工艺制造，具有很好的测量精度和参数一致性，但是，线匝密度较小，而且截面上磁感应强度梯度较大，从而影响了线匝沿圆周均匀分布的连续性，使其具有了离散分布特征。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。