加速度

For the Sun in its orbit around the centre of the galaxy, the speed is 220 km/s, but the acceleration only about 10 pm per second per second (a picometer, pm, is a trillionth of a metre) and the required force is 0.0000000001% of your weight.

太阳绕银河系中心公转的速度为220km/s，但加速度只有约10 pm/s/s （1 pm=10^-12 m），相应的力只有你体重的

In order to detect load in tumbling box correctly,the frequency band that could reflect information of mill ball load was obtained from the vibration signal collected from ball mill bearing block.The signal was analyzed by energy method based on wavelet transform,from which the frequency band signal was picked out to show the corresponding coal level in tumbling box.

为了更准确地检测料位，对球磨机轴承座振动加速度信号进行采集，从振动信号中提取了反映料位信息的特征频段，利用小波分析技术对信号进行了能量分析，分离出反映滚筒内存煤量信息的信号，为实现球磨机料位的自动控制提供了理论依据。

In this paper a Nonlinear Variable Dimension Estimator is proposed for tracking maneuvering spacecraft. Two process models were incorporated by the Unscented Kalman Filter to account for the dynamic uncertainties of the target of interest: a nonmaneuvering model based on the two body problem and a maneuvering model taking the forced acceleration as the unknown system input to be estimated.

当飞行器处于无机动的巡航状态时，无色卡尔曼滤波器使用常规的二体问题模型描述其运动规律，而当飞行器被认为开始机动后，滤波器将扩展系统的状态空间，将机动加速度作为状态变量进行估计，从而增加了模型的适应性。

Even quicker acceleration results from the included two-speed transmission; second gear produces faster top speeds.

甚至更快的加速度结果从包括两个高速传输；第二齿轮生产更快的最高时速。

Based on the principle of energy equivalence, the expanding expression of seismic acceleration process is achieved. The seismic process is expanded into a linear combination of deterministic functions modulated by 10 uncorrelated random variables.

为此，提出了从地震动位移过程的正交展开出发，引入一类能量等效原理，获得了地震动加速度随机过程的正交展开式，进而将地震动随机过程展开为由10个独立随机变量所调制的确定性函数的线性组合形式。

This is because for the transition from undeformed material to deform to take place along a thin plane, the acceleration across the plane has to be infinity.

这是由于未变形的材料沿着剪切面发生变形，而且越过剪切面的加速度无穷大。

The acceleration is indispensable as a state-variable for precise analysis of the dynamic response of a drive system. This is because it represents the direct, undelayed response of a mass being moved in reaction to all the forces acting on it.

加速度是必不可少的一对驱动器的系统，这是因为它代表着直接的，毫不拖延地的群众正在反应，反应的所有部队行事提出精确的分析动态响应状态变量。

It starts from rest and falls vertically downward with uniform acceleration.

它从静止开始以匀加速度竖直下落。

Vehicle side slip angle is considered as mapping of time series of yaw rate and lateral acceleration. A uniform design project is used to select training samples, and the relationship of the three state parameters is established through neural network.

把汽车侧偏角看作横摆角速度和侧向加速度时间序列的映射，采用均匀设计方案对训练样本进行优选，通过神经网络建立三者之间的映射关系。

The analyzing system is tested by experimental data from Shanghai Maglev train, including transverse, longitudinal and vertical acceleration under different uniform motions. The sperling value, integrated comfort value and comfort values in three directions are calculated and compared with the analyzing report of Shanghai Maglev train, which proves the reliability of the sytem.

本文利用此分析系统对上海磁浮列车在不同匀速度行驶时的横、纵、垂向加速度的实验数据进行分析处理，计算了磁浮列车的平稳性指标、综合舒适度指标及各向舒适度指标，并将本分析系统的计算结果与上海磁浮列车分析报告中的计算结果进行比较，从而证实了此分析系统的可靠性。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！