特征参数

The traditional AE characteristic parameter analysis method has been used to study the damage process of the product.

提出声发射检测技术在某型导弹的球形补压气瓶检测中的应用，找出传感器的安装布局和定位声发射源的算法，采用参数分析的方法对产品在变形损伤过程中的AE特征进行研究。

One method is to change the problems of estimating complex two-dimension sinusoids into the problems of estimating characteristic polynomial coefficients.

一种方法是将复杂的二维正弦波参数估计问题巧妙地转换成一个特征多项式系数估计问题。

The spectrum characteristic is namely a kind of important parameter for evaluating the structrue character of coal and rock medium.

频谱特性即是一种对煤岩体结构构造特征判定具有重要指导意义的参数。

The device parameter as well as resonance frequency,mechanical quality factor and work band width were determined by the equiv- alent circuit input impedance admittance circle diagram .

分析压电式超声波换能器的等效电路，并由等效电路输入阻抗的导纳圆图确定了换能器的元器件参数以及谐振频率、机械品质因数和工作带宽等特征参量。

The effects of processing parameters on the cladding layer were examined, and the layer microstructure was investigated.

分析了激光功率、扫描速度和光斑直径等工艺参数对熔覆效果的影响，观测了熔覆层的组织特征与性能。

Fractal dimension will be an important parameter of studying the mathematical and genetical characters of the permeability distribution in clastic rock reservoirs.

分维将是一个研究碎屑岩储层渗透率分布的数学和成因特征的重要参数。

According to the data of tropical cyclone landfalling in China for 1949-2006, climatologically statistical parameters of typhoon season, including the first-landfall TC date, the last-landfall TC date and the duration of typhoon season were analyzed.

利用1949—2006年登陆中国的热带气旋资料，分析登陆 TC 台风季参数的气候特征，结论如下：1 登陆中国的初旋①以南海生成为主（占5成半），终旋以西太平洋为主（高达8成），近50多年来初、终旋源地分别呈现向东北、西北移动的趋势；2 广东初旋最早，广西、浙江终旋较早，广东台风季最长。

Based on these, a new method for designing robust pole assignment control systems is established with characteristic coefficient sensitivity as its cost functional.

在此基础上，提出了一种以加权特征系数灵敏度为性能指标，结构化小参数摄动下的鲁棒极点配置控制系统的设计方法。

The characteristics of protozoan community structures and their colonization were analyzed.

分析了该原生动物群落的结构和群集过程的特征，结合水质的理化参数对该处理系统效能进行评价。

The results indicate that the vertical component of wind velocity variance remains unchanged but the hori- zontal component increases as the sampling length increases.

结果表明：在进行湍流统计特征量计算过程中，采样长度增加时，垂直分量风速方差无明显变化，水平分量风速方差增大；随着风速的减小以及稳定度参数 z/L的增加，采样长度对计算结果的影响变得更为突出。

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。