查询词典 xi

Extract information based on the instantaneous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised.

提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值，零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。

Erdmann, 1881, xi:" if the representation is not in itself the cause of the object."

中Xi有这一子句："如果表象本身不是对象的原因。"

Xi The playing range of French Horn is:- From C one octave below middle C to C one octave above middle C.

xi 法国号的音域宽广，从中央C低八度的C到比中央C高八度的C。

The system input is a potentiometer 5 given the value of xi.

这个系统的输入量是电位器5的给定值xi。

The following values was measured: angle of cusp line between the second and third molar, impact state and depth, distance from Rickett's Xi to distal cusp of third mandibular molar along the occlusal plane, anterior border of ramus to the third mandibular molar, distance from projection of distal contact point of maxillary third molar to intersection of pterygoid vertical on occlusal plane.The change between pre-and post-treatment was calculated and analyzed with SPSS10.0 software package.α angle, Xi-LTM, R-LTM, R-LTM were tested with independent-sample t test, impact state and depth was tested with Chi-square test. Influence of age on the values was also evaluated.

测量治疗前后的第二、第三磨牙牙尖连线角度、阻生状态和深度，Rickett's Xi点到下颌第三磨牙远中尖距离、下颌支前缘到第三磨牙远中尖距离、翼上颌裂切线到上颌第三磨牙后缘的距离及上、下磨牙的前移量，计算治疗前后各变量的差值，采用SPSS10.0软件包进行统计学分析，α角、Xi-LTM、R-LTM、R-LTM用t检验，阻生状态和深度用χ^2检验，比较年龄因素对各指标的影响。

If xi + y is a complex number, then think of a quaternion as a very complex number.

假如xi + y是一个复数，那么我们可认为四元数是一组很特别的复数。

More and more researchers are returning to China. We don't want them to waste time and money like we did, says Huang Yanyi, who like Xi is a returnee in Peking University's biomedical engineering department.

和Xi同样是海归的huang yanyi说：有越来越多的研究者回到中国，我们不希望他们象我们当初一样浪费时间和金钱。

The solution of is only dependent on the ratios of levitator parameters { Xi } to the wavelength l , namely,, where,{ Xi } represents a set of the geometric parameters.

的解仅依赖于悬浮器几何参数{ Xi }与波长 l 之比值，即，其中{ Xi }表示发射端和反射端几何参数的一个集合。

In this dissertation, several kinds of PESs were constructed by using the precise quantum chemistry program Xi'an-CI written by our group;besides the program was modified to expand and perfect its function.

本文运用我们小组自行开发的精确量子计算程序Xi'an-CI，针对具体体系构建不同性质的势能面，同时根据需要扩展完善Xi'an-CI的功能。

The gi is defined as gi ＝( ni 0.5－0.91)4· xi 0.5/ Zi 0.5, where Zi , ni , xi are the valence, the outer electronic shell primary quantum number, and the electronegativity of atom i respectively.

gi 定义为： gi =( ni 0.5-0.91)4。 xi 0.5/ Zi 0.5，其中 Zi ， ni 和 xi 分别代表离子 i 的电荷数，最外层主量子数和电负性。

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。