平均时

They applied smoothed pseudo Wigner–Ville distribution [1,2], order tracking and time domain averaging techniques to distinguish faults in the gears.

他们应用平滑伪Wigner - Ville分布 [ 1，2 ] ，订单跟踪和时域平均技术，以区分故障的齿轮。

Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor's optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feed- forward control and the filtered-X least mean square algorithm.

针对飞机液压能源管路系统中的周期性流体脉动诱发流固耦合振动，导致管路疲劳损伤的问题，针对管路中存在压力驻波特性，在采用单点消振时寻找误差传感器最佳布局位置困难而引起脉动抑制效果不理想的缺点，提出了一种分布式流体脉动主动控制方法，即沿管路不同位置布置多个主动消振阀和误差压力传感器，在任意飞行阶段，避开压力驻波点，以误差压力传感器的脉动测量值为控制目标，采用一种针对周期脉动主动控制的自适应前馈控制法和多通道自适应滤波－X LMS算法，调整控制器参数，使主动消振器产生的次级脉动与管路中的初始脉动相互抵消，达到整个管路中的平均流体脉动最小的效果。

From the whole analysis of the forecast score and anomaly correlation coefficient, the RegCM_NCC has some capabilities in predicting the major seasonal average temperature and rain belt, especially in some areas.

使用国家气候中心气候预测室的业务预报评分和距平相关系数等五个评估参数对模式的回报和预报进行了评估分析，结果表明：该模式时我国夏季平均气温和降水具有一定的跨季度预报能力，部分地区有较好的预报效果。

Compressor power consumption was greatly affected by inlet air relative humidity and wet-bulb temperature.

结果显示：冷凝温度和冷凝压力均随着入口空气湿球温度的升高而升高；入口空气相对湿度对压缩机功耗的影响与湿球温度对压缩机功耗的影响均比较大；对基于同一压缩系统的实验比较表明，在冷凝温度为38℃时，板式蒸发式冷凝器的热流密度比管式蒸发式冷凝器平均大30.5%；且在相同的冷凝温度下，入口空气湿球温度越低，板式蒸发式冷凝器的热流密度比管式蒸发式冷凝器大得越多。

For the FA, the results indicated that the VPD calculation using mean of 24 hourly temperature values as saturation vapor pressure, and wet-bulb depression as actual vapor pressure yielded the lowest error, the least range, and the most frequency with the highest WI. These outcomes were as well as the SIA with the lowest EMSE, R^2 higher than 0.99 and the highest CE.

分析结果显示，以频率分析法而言，各地农业气候分区均呈现，VPD计算式以24个时温度日平均为饱和蒸汽压力，与湿球下陷量为实际蒸汽压力，具误差最少、全距最小、出现频率最多及最高权重指数，性能表现最佳，这样的结果，对照统计指标法之检测评估，同样具最低RMSE、R^2值0.99以上及最大CE，性能表现优於其他所有VPD计算式，两者，结果一致。

Thus, study on the formation mechanism of AF in weld metal of microalloyed steel has both theoretical and practical significance.

当焊缝金属中含有65％以上、平均尺寸约为1μm的AF时，焊缝金属具有良好的综合力学性能。

In order to investigate into the characteristic of shaft torsional vibration when any single cylinder flames out and how that affects the main power propulsion system of a ship, the author puts forward a new way of calculation concerning the shaft torsional vibration when the mean indicated pressure of other cylinders remain unchanged.

本文对此型柴油机的扭转进行了计算，并提出单缸熄火时其他缸平均指示压力保持不变的轴系扭振计算方法。

We present a phenomenological description of a two-component process for synaptic plasticity and dynamical model.

我们给出了突触可塑性的ltp和ltd合成的过程、动力学模型及突触增强变化的预测模型，当用预测尖峰的不同频率训练和poisson分布训练时，将产生不同的突触前和突触后的平均电压。

The computer-aided B+M-mode ultrasonography was used to assess their tongue movements. Duration, magnitude and speed of tongue movements in different swallowing phase were measured from 112 healthy adult volunteers and compared with their dentofacial morphology using a simple correlation analysis.

选取112名健康的成年志愿者为受测对象（男性74位，女性38位，平均年龄为22岁），以电脑辅助B模式结合M模式口腔超音波防震扫描技术评估吞咽时舌头的运动情形，计算舌头在不同吞咽分期的运动持续时间、运动振幅以及速度，并以简单相关分析法求得与齿颜面形态的相关性。

Most of the flood from the wide inner lowland plain discharges through tide locks on coast,and the influence of tidal flat inning projects on the tide lock drainage must be solved by seawall line choice.

结果表明，合理的滩涂匡围堤线方案，在平均潮汛及一般大潮汛时对邻近闸下排水能力影响较小，而在风暴潮或秋季大潮汛时有一定影响，但可以通过若干次冲淤保港来解决。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。