母体，随机样本。样本统计， 样本平均数和变异数的动差。
Populations, random samples. Sample statistics, moments of the sample mean and variance.
它由定差减压阀，液动换向阀和简式节流阀三部分组成。
It is certainly worse by the pressure reducing valve , hydraulic throttle valve and the short form of three parts.
能实现雷达和、差信号的数字脉冲压缩与动目标检测，并控制着整个雷达系统的运行。
It not only can implement the digital pulse compression and coherent integration for radar sum and difference signals, but also control the whole radar system.
在动载荷条件下，第一正应力差效应明显增强了油膜压力和承载力，并对轴心轨迹产生影响。
The effect of the first normal stress difference increases the load capacity obviously under the condition of the dynamic load, and it also affects the locus of shaft center.
对加工过程进行详细分析，指出止动槽位置超差因素并制定了控制止动槽超差措施。
The processing is detailed analyzed, the groove position exceeding tolerance factors are gave and measures of controlling groove-tolerance are worked out.
针对加工轴承用多刀半动车床工装通用性差、制造困难等问题，对工装各更换件易损部分进行了改进。
To counter some problems about bad universal use and making difficultly belong to semi-automatic-cutter lathe for pressing bearing, wear position of renewals was improved.
结果和结论VBI患者存在眼动系统异常，表现为扫视时间延迟、准确度差、视动增益值降低，平稳跟踪的不对称性。
Results and ConclusionDelay lower accuracy of saccade test, decreased gain of OKN, asymmetry of horizontal ETT were showed in the patients with VBI.
详细分析LCD - 3a线路纵差保护误动的原因，提出解决的措施及理论依据。
Reasons of wrong actions of longitudinal differential protection of LCD-3A line are analyzed. Solutions and theoretic criteria are proposed.
第二，对二元概率假设检验理论进行研究，并通过其来完成作动器故障的残差判决。
Secondly, Binary probability hypothesis detection is studied and is utilized as actuators' FDI residual decision.
叙述了湛江发电厂3号机组a汽动给水泵汽轮机2号瓦振动问题的分析及处理的整个过程，指出造成2号瓦振动大的主要原因是不平衡及轴瓦刚性差。
This paper presents the vibration analysis and treatment of No. 2 bearing of the steam turbine for Unit 3 turbine driven feed water pump a in Zhanjiang Power Plant.
报道了一例汉语命名性失语症个案，他在口语命名图形与口语产生句子时均表现为对名词的作业能力差于动词，而且这种动-名词分离现象仅局限在语音输出通道上。
Chinese anomic aphasic patient is reported to exhibit in oral modality greater selective impairment in producing nouns than verbs, and the dissociation does not occur in other modalities.
实验证明：所开发的气泡致动器可以有效地进行延迟分离，降低压差阻力，实现了主动流动控制。
The experiment results demonstrate that the balloon actuators can be used for separation delay and drag reduction to realize active flow control.
首先求出acf和其凸包的差函数，然后搜索差函数的最大值，从而得到进动周期的估计值。
The difference function between the ACF and the convex hull is obtained, and then the precession period is estimated by searching for the maximum value of the difference function.
阀口压差的稳定是高精度液动测量的保证，因此深入研究了阀口压差控制技术。
Constant orifice differential pressure is the premise for high accuracy hydraulic measuring, so thorough analyse of orifice differential pressure control technology has been taken.
另外，在从通过上述编码所编码的差分运动矢量，对运动矢量进行解码的情况下，通过与编码相反的处理来进行。
Moreover, when decoding the motion vector from the differential motion vector coded by the aforementioned coding, a reversed processing with respect to the coding is performed.
分别求出了磁液动密封中磁液和被密封液体的速度分布，特别是磁液作为非牛顿流体运动方程的解，并计算了两相液体界面的速度差。
The motion equations of sealed liquid and magnetic liquid which is considered to be non-Newton fluid in magnetic liquid seal were solved respectively and their speed distributions were got.
文章介绍了IAU1976岁差模型、IAU1980章动模型以及IAU2000 A岁差章动模型，并对不同的岁差章动模型进行建模仿真。
IAU1976 precession model, IAU1980 nutation model and IAU2000A precession-nutation model were presented, the differences were compared with IAU2000A precession-nutation model.
文章介绍了IAU1976岁差模型、IAU1980章动模型以及IAU2000 A岁差章动模型，并对不同的岁差章动模型进行建模仿真。
IAU1976 precession model, IAU1980 nutation model and IAU2000A precession-nutation model were presented, the differences were compared with IAU2000A precession-nutation model.
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