The second time derivative is the constant acceleration.
它的二阶导数就是这个恒加速度。
It focuses on parameter measurement for constant acceleration overdamped coil type geophones.
研究恒加速度过阻尼动圈式地震检波器参数的测量方法。
Envelope migration of radial target with constant acceleration was researched in chapter four.
第四章对径向匀加速目标的包络走动补偿问题进行了研究。
We know the equations so well from our last lecture from one-dimensional motion with constant acceleration.
上一课的方程我们，已经比较熟了，常数加速度的，一维运动方程。
A calculation criterion of harmonic CAM with constant acceleration for fuel injection pumps is presented.
本文提出了具有等加速度段的谐波函数供油凸轮的计算准则。
Abstract: the study of constant acceleration test was presented, and the problems in test were discussed.
对恒定加速度试验进行了研究，并对在试验中出现的一些问题进行了探讨。
Is the well-known equation for velocity under constant acceleration. This equation is linear; the slope of the line is the acceleration.
就是众所周知的恒加速度的速度方程。这个方程是线性的，这条直线的斜率就是加速度。
Based on the dynamic modeling in state space, the state space model of GPS ise established: constant speed model and constant acceleration model.
建立了GPS系统的状态空间模型：定常速度模型和定常加速度模型。
This paper provides a new method for forecasting the future positions of a moving object that moves at a constant velocity or constant acceleration.
本文提出了一种计算匀速或匀加速运动目标的空间位置分析预测的新理论。
And discusses a machining way when the hole is thin and long, then take the bus-bar of the hole as the constant acceleration curve spray nozzle part.
讨论了内孔为细长孔，孔的母线为等加速曲线的喷嘴零件的加工方法。
Mechanics models of load constant acceleration, constant speed and constant deceleration are built considering stiffness change during load moving horizontally.
考虑重物水平挪移运动过程中钢丝绳的刚度变化，建立了匀加速移动、匀速移动及匀减速移动的力学模型。
Oftentimes the stressful pace of life in the modern world and the seemingly constant acceleration of change can drive the feeling life of the Pluto-Moon over the brink.
通常现代世界快速的步调，和经常加速的变化可以把月冥人的情绪生活逼到崩溃的边缘。
With the constant acceleration of informational globalization, journalistic writing which is involved in the process of news spreading is unable to adapt to the situation.
随着信息全球化的不断加快，处于新闻传播过程中的新闻写作显得有些力不从心。
Constant acceleration test is an important testing item in reliability testing, the covering up sand and the sticking on magnet are used widely which are important for this testing item.
恒定加速度试验是可靠性试验中一种重要的试验项目，埋沙法和磁贴法作为该试验项目的两种重要方法已经被广泛使用。
So notice that the acceleration is constant in time, is not changing but the velocity is changing.
请注意此处的加速度，是一个常数，不随时间变化而变化，不过速度是变化的。
When we have gravity an object is influenced by the gravitational acceleration and the gravitational acceleration is a constant.
当我们考虑到重力时，物体受重力，加速度影响，重力加速度，是一个常数。
I now would like to write down, in most general form the equation for the position and the velocity as a function of time for a one-dimensional motion whereby the acceleration is constant.
我来把更一般的形式，写出来吧，在一维空间中，位置和速度，作为时间函数的，一般形式，这里的加速度是一个常数。
It also doesn't look like the tap-acceleration is constant.
同时，“点击加速度”看起来也不是恒定的。
And if you calculate, if you assume that - the acceleration is constant — it's an easy calculation — it turns out that the acceleration is only two meters per second squared.
如果计算一下，如果你假设，加速度恒定-，那就很好推测了，你会发现，加速度仅仅是，2米每秒的平方。
Called Distronic, it also operates at high speed and adjusts both braking and acceleration to maintain a constant distance from other cars.
这种系统在高速行驶时也起作用，通过调整制动和加速系统来保持同其他车辆的距离。
So the acceleration depends on the value of the spring constant as well as the distance the spring (bubble wrap) is compressed.
有上述公式可知，加速度取决于弹性系数和弹簧(即汽泡纸)收缩的距离。
Called Distronic, it also operates at high speed and adjusts both braking and acceleration to maintain a constant distance from other cars. If a collision seems likely a warning is given.
雷达控制系统同样在高车速时启动并通过自动加减车速来保持与其它车辆间的固定距离并在预见事故时发出警报。
But the lower the time constant, the more horizontal acceleration noise will be allowed to pass through.
但是时间常数越低，允许通过的水平加速度噪声就越多。
The stability of Tongxue oral liquid was studied with the method of constant temperature acceleration test according to the principle of chemical dynamics.
根据化学动力学原理，采用恒温加速试验法，对通血口服液稳定性进行了研究。
The automobile which adopted the steering control algorithm can keep a constant steering characteristic; and its stability is improved through yaw rate and lateral acceleration feedback control.
利用所提出的前轮转向控制算法，可以使汽车具有不变的转向特性，通过横摆角速度和侧向加速度反馈控制，提高了汽车的稳定性。
A constant, external acceleration applied to the cloth.
施加于布料的外力，一个恒量。
A novel acceleration feedforward control strategy and a calibration algorithm on feedforward mass and motor constant were proposed for linear driving system.
针对直线驱动系统，提出一种新的加速度前馈控制策略及前馈质量与电机常数的校准算法。
The fuel cell and the battery system will together provide power to the vehicle during periods of peak power demand such as vehicle acceleration or traveling at a high constant speed.
在汽车加速、爬坡或高速运行等高功率需求工况时，由燃料电池和蓄电池同时提供动力。
Compared with Z-axis acceleration and deceleration, the reaction time was shortened during off-vertical axis constant angular acceleration and deceleration.
偏心加速度或负加速度旋转时相对于Z轴旋转，反应时缩短。
The DC drives provide the answer to the most essential needs of acceleration, deceleration, stopping, and constant velocity, with inherent shaft stiffness for successful operation of the CNC system.
直流电驱动应用自身固有的轴硬度成功地满足了操作CNC时，对最关键的加速度、减速、停止及常速度的需要。
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