加速度

The analysis result about vibration states that the double involute gear possesses the better dynamic characteristics than that of the common involute gear. The results of experiments betoken that such gear will have a very good prospect of use.

振动分析结果表明：双渐开线齿轮振动速度的有效值和振动加速度的幅值与渐开线齿轮相比均有明显下降，表明双渐开线齿轮具有更好的动方学特性；同时从双渐开线齿轮振动时域图及频谱图上未发现异常成分存在。

Principle, function and construction of the PBT-1 biaxial tilting table for calibrating accelerometers are described in this paper.

本文扼要地介绍了专门用于加速度计静态标定的PBT—Ⅰ型双轴转台的工作原理、性能和构造。

The rules of BIC and minimum residual sum of squares are used to gain the optimum error model.

利用BIC准则及残差平方和最小原则得到振梁加速度计的最佳误差模型。

Our company has developed the car intelligence anti-collision device, which can make up the current defect in car safety equipment, this product can automatically open blinker flash as warning signal by acceleration at collision time without any hand operation, and send out anti-collision signal, it can be received timely by the coming cars within 150 meters, which makes the driver take measures to avoid traffic accident in advance, thus preventing the rear-end accident, it is the first choice for car intelligence safety upgrade ,and can change the history of no driving on expressway in foggy days.

我公司研制的汽车智能防撞器，能弥补当前汽车安全配置的不足，它能在紧急制动或碰撞时，无须任何手动操作，靠加速度撞击力瞬间自动打开警示灯闪烁示警，并向外发射防撞信号，驶近车辆在150米内能及时接收到危险信号提示，使驾驶员提前采取紧急避让措施，从而有效的防止追尾事故的发生，它是当今汽车智能安全升级的首选，并可改变雾天高速公路不能行车的历史。

First , the car equipped with the product can automatically open blinker flash as warning signal by acceleration at collision time without any hand-operation , and at the same time automatically send out anti-collision signals through wireless when the driver can't spare to open the emergence lamp to give warning to the coming car.

第一， 车辆行驶遇突然事故紧急制动或碰撞，驾驶员来不及或无法打开警示灯向驶近的车辆示警时，该产品无需任何人工操作，靠加速度撞击力即可瞬间自动接通警示灯闪烁示警，同时自动通过无线电对周围发射防撞信号。

Tests was carried out on cookies both in single and package unit to measure its velocity change and acceleration in different orientation in different damage rate based on damage boundary theory. The damage boundary curve was obtained.

以苏打饼干单片和单包为研究对象，应用破损边界理论，设计相关实验，测试饼干在不同破损率条件下各个方位的速度变化及加速度，构造出饼干的破损边界曲线。

Based on the plasto-elastic bounding surface model, the dynamic characters of typical clay and silt were studied through several types of laboratory dynamic tests. The parameters of dynamic bounding surface model were given upon the tests. By using a nonlinear procedure for response analysis of horizontally layered sites subjected to multi-directional earthquake loading, the response of acceleration, pore pressure and dynamic stress in Shanghai area under different earthquakes were studied.

在弹塑性边界面模型的基础上，通过试验，研究了上海地区典型粘土和砂性土的动力特性，取得了针对边界面模型的计算参数，并采用多向地震作用下的水平地层弹塑性动力反应分析程序对以深厚软土覆盖地层为特点的上海地区典型的土层断面，以苏南核电站为主的地震输入进行了场地反应分析，在加速度特性、孔压特性和动应力特性等方面取得了相应的结果。

Based on Brune ω~2 source spectrum ,Hanks and McGuire deduced a simplified formula of RMS accelera- tion by stationary random vibration theory and Parseval theorem.

Hanks 和 McGuire 基于 Brune 的ω~2震源谱，借助平稳随机振动理论和 Parseval 定理给出了估计均方根加速度衰减关系的表达式。

According to the experimental data, it is found that the circumferential diffierence of heat transfer characteristics occurres due to the effects of thermal acceleration and buoyance in the inclined smooth tube at supercritical pressure.

实验结果表明：在超临界压力区域，倾斜光管内可能由于受到热加速度和浮力的综合作用，倾斜光管传热特性沿周向是不均匀分布状态，通常管内顶部的壁面温度比底部高，在大比热区发生传热恶化和传热强化的现象，低质量流速和高热负荷条件下会发生传热恶化现象，高质量流速下会发生传热强化，避免壁温发生飞升；内螺纹管内的传热特性在不同焓值区域表现不同，在远离拟临界焓值的低焓值区域和高焓值区域，呈现出相似的规律，而在接近拟临界焓值区域时，传热得到强化。

With eight-piston callipers, the brakes provide impressive retardation and also give an 8kg reduction in unsprung weight, benefiting steering response, ride suppleness and acceleration.

八活塞卡钳，刹车提供了令人印象深刻的迟钝，并给予在非悬挂重量减轻8公斤，受益的转向反应，坐柔软和加速度。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失