加速度

Mathematic model of double four-bar mechanism is very complex,so its speed and acceleration is always the difficult points of the research.

双四杆机构因其数学模型复杂，其速度和加速度曲线一直是研究的难点。

The results show that the camber deformation may play an important role in lift and drag coefficients. The positive camber deformation of the hindwing during the downstroke generates the vertical force, whereas negative camber deformation of the wing during upstroke generates thrust force. The freely flying dragonfly's hindwings play an important role in providing a stable lift force, and the forewings are very important for controlling flight behavior, such as turning, climbing and so on.

建立了自由飞行昆虫运动测量系统，开发了结合条纹投影和昆虫翅膀特征点测量翅膀变形和身体姿态的方法，首次测到了自由飞行昆虫运动翅膀变形和各种相关角度，速度、加速度，身体位置与姿态，通过分析比较直飞和转弯各个运动参数，认为蜻蜓的飞行控制主要由前翅完成，而后翅主要用于产生升力。

Under the condition of running on the hard soil pavement with the total train mass, the riding comfort tests of the tractor-trailer combinations with the stiff and the flexible drawgear have been performed, and the dynamics longitudinal force has been studied. When the flexible drawgear was used, the theoretical results and the experimental data showed that the peak value of the dynamics longitudinal force, the peak value of the RMS of the dynamics longitudinal force, and the PSD both of the dynamics longitudinal force and of the longitudinal acceleration decreased largely.

以平稳随机路面激励状况下满载行驶作为挂接车辆的经常行驶工况，进行了挂接车辆以刚性牵引架及不同柔性牵引参数的柔性牵引装置牵引运行时的平顺性试验，柔性牵引理论分析结果与试验结果均表明，使用柔性牵引参数值接近优化值的柔性牵引装置后，动态纵向牵引力的峰值、功率谱密度峰值及均方根值均有了大幅度的降低；主车和挂车的纵向振动加速度功率谱峰值也有了很大的降低。

So the performance of microaccelerometer and instrumental drop hammer machine complies with technology standards.

证明了加速度传感器、虚拟仪器平台落锤实验机的性能符合相关技术要求。

Stochastic variables included driven accelerations, driven time, torques, frictions and damps were considered basically. In the first, Monte Carlo method was applied to generate stochastic variables and dynamical responds of mechanism. Secondly, the application of Artificial Neural Network was motivated by the approximate concepts inherent in reliability analysis and time consuming repeated analyses required for MC.

将驱动加速度、驱动时间、摩擦和阻尼力等作为随机变量，应用蒙特卡罗方法，取得动态参数样本，再利用人工神经网络方法，根据抽取的样本对网络进行训练，统计网络输出得到动态应力分布，进而求出机构动态强度可靠度。

A dyne is that force which imparts to a mass of one gram an acceleration of one centimeter per second.

一达因是使质量为一克的物体得到 1厘米/秒加速度的力。

Throughout this maneuver it is important to keep your speed up and release chaff throughout pop-up and egress.

整个机动保持你的加速度和在pop-up过程中释放chaff并离开是很重要的。

With the acceleration of industrial growth came acute urban crowding and accompanying social stress-conditions that began to approach disastrous proportions when, in 1888, the first commercially successful electric traction line was developed.

以工业发展的加速度来了开始接近惨败比例的深刻都市拥挤的和伴随的社会注重状况，当， 1888年，第一条商业成功的电牵引线被开发了。

Nowadays the standard on the experiments of materials characteristics of GFRP bars is incomplete;the data about the electrometric method on the elastic modulus test of GFRP bars is especially scarce.

目前GFRP杆件材性测试相关规范还不完备，特别是采用电测法测试GFRP杆件弹性模量缺少相关资料。为测量梳齿式微机械加速度计敏感元件的机械参数，提出一种静态电测法。

During this time, the ship, moving with the acceleration g , will cover the distance L given by the following formula of elementary mechanics

在这段时间里，飞船以加速度 g 前进，前进距离 L 将根据下面基本计算的公式给出

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！