均方根

Laser Doppler Anemometry was used to measure the velocity in volute and impeller of the pump. Three velocity components magnitudes were obtained, so was the mean square root fluctuating value.

运用激光多普勒测速仪，对旋流泵最优工况下的无叶腔及叶轮内部速度场进行了测量，得到周向速度、轴向速度、径向速度及其对应的均方根脉动速度分布等。

Next, the Tyler frequency is determined by which the tilt cut-off residual error of a diffraction angle is applied.

然后以一个衍射角为截止均方根残差，根据实际测得的湍流功率谱确定Tyler频率。

The angular distribution of the scattering coefficient of the HH polarization is obtained by numerical implementation, the influence of the fractal dimension, the special fundamental frequency, the scale interval, the permittivity of substrate medium, the permittivity and the mean layer thickness of intermediate medium, the root mean square of rough surface, and the frequency of the incident wave on the bistaticscattering coefficient is discussed.

通过数值计算得到了HH极化下双站散射系数随散射角的变化曲线，讨论了分维、空间基频、标度区间、底层介质介电常数、中间介质介电常数和厚度、粗糙面高度起伏均方根及入射波频率对双站散射系数的影响，得到了平面波入射一维带限Weierstrass分形分层介质粗糙面散射系数的分形特征、基本特征、分区特征和随频率变化的特征。

Compared with the approximate calculation method, the results show that the average prediction accuracy of the method based on the thermodynamic theory can be improved by 0.044nm.

用改进后的方法对12个蛋白质进行了测试，预测结构相对于天然结构的均方根偏差在0.4～0.6 nm之间。

In this paper the influence of coma and spherical aberration on the far-field distribution and antenna receiving power is analyzed, in which aberration attenuation factor is introduced and the relation of it to root mean square of wavefront aberration is given.

分析了球差和彗差对信号光远场分布、天线接收光功率的影响，引入了畸变衰减因子，给出了畸变衰减因子与波前畸变均方根值的关系。

Build optimization mathematics model of the Muti-body whole system, then optimize the system, aiming at minimize the max value of acceleration's average square root of the seat.

建立了针对驾驶室悬置系统与主悬架系统参数优化设计的数学模型，以驾驶室座椅处垂直方向的最大加速度均方根值最小为目标进行了优化设计。

By simplifying the motorcycle's entity structure model and using the iterative data of a road simulator as the road simulation actuator,it calculates and analyzes values of acceleration's average square root for motorcycles,then evaluates their comfort ability by the relative standards.

方法是将摩托车实体结构模型进行简化，加入道路模拟的迭代数据作为模拟路况的激励，在ADAMS/PostProcessor的界面上进行加速度均方根值的计算和分析，采用相关评价标准对其舒适性进行分析评价。

Based on Brune ω~2 source spectrum ,Hanks and McGuire deduced a simplified formula of RMS accelera- tion by stationary random vibration theory and Parseval theorem.

Hanks 和 McGuire 基于 Brune 的ω~2震源谱，借助平稳随机振动理论和 Parseval 定理给出了估计均方根加速度衰减关系的表达式。

Methods Nine healthy volunteers were asked to do a specific grip test with three force levels of maximum volunteer contraction,80% MVC and 40% MVC.sEMG signal was recorded from flex digitorum superficialand extensor carpi radialis longussimultaneously.

方法9名健康被试者参加了试验，包括最大自主收缩力(maximum volunteer contraction，MVC)，80%MVC及40%MVC，记录指浅屈肌和腕长伸肌的表面肌电信号，并采用均方根和小波分析方法提取其特征参数；运用SPSS软件统计以被试者自身的MVC为基准的不同握力水平的相对特征值，使不同的被试者具有可比性。

One case is the earthquake on 21 September 1999 near Chi-Chi in central Taiwan.

在集集地震所产生的地表侦测部分，因为台湾中部地区繁密的植物覆盖及地震引起的变动产生不相关性，使得断层东边地区因低相关性而无法侦测变动情形；但断层西部因地势较平坦且变动量亦较小，因此以干涉技术可以清楚的侦测出其变化情形。D-InSAR与GPS资料都具有高精度的侦测结果，在垂直方向的比较结果均方根误差为3.3 cm，两者具有相当的一致性，因此在地震的变形侦测中，两者的量测资料可以有良好的互补作用。

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。