In chemical kinetics, the measurement of velocity constant of sucrose hydrolysis by polarimetry is a typical experiment.
旋光度法测定蔗糖水解反应速度常数是动力学的一个典型的实验。
Paving asphalt of AH-70 has higher reaction active energy, less reaction velocity constant, lower aging velocity and better aging resistance performance than that of paving asphalt of AH-90.
与AH-90相比AH-70沥青具有较高的反应活化能,反应速度常数较小,具有较低的老化速率和较好的抗老化性能。
On constant volume hoods, this raises the capture velocity.
在定容罩上,这会提高捕获速度。
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。
Yes -i need more data to really see if the final velocity is constant. However, let me look at the distributions of vertical accelerations before the tap.
我确实还得收集更多的数据,看看点击后的速度是不是恒定的,但让我先看看点击之前竖直方向的加速度吧。
Yes - I need more data to really see if the final velocity is constant. However, let me look at the distributions of vertical accelerations before the tap.
我确实还得收集更多的数据,看看点击后的速度是不是恒定的,但让我先看看点击之前竖直方向的加速度吧。
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。
So, even if the speed is constant, that means, even if a length of the velocity vector stays the same, the velocity vector can still rotate.
因此即使速率不变,也就是说速度矢量的的大小不变,但它的方向可以做旋转。
We did a demonstration there with two vibrating objects with a spring, but yet the center of mass was moving with a constant velocity.
我们做过演示的,弹簧连接两个振动物体,但是质量重心,却保持稳定速度。
Note that still the velocity is constant along the desired segments at the corresponding design angles of attack.
看到的依然是不断沿着速度预期在相应的环节设计迎角。
Control of the actuator velocity and if necessary maintaining it constant with varying loads.
执行器速度的控制,如果必要维持其在变化负载下的稳定。
The measurement of velocity of the jet flow field is carried out with the TSI-IFA300 constant temperature anemometer.
利用TSI-IFA300热线风速仪系统对致动器喷口外的流场进行了测量。
The quasi-superplasticity of leaded brass for bearing cage was investigated through the constant velocity tensile test.
通过恒速拉伸试验,对一种生产保持架用铅黄铜的准超塑性进行研究。
The disc and associated moving parts may be in a constant state of movement if the velocity pressure is not sufficient to hold the valve in a wide open and stable position.
如果流体流速压力无法将阀门支撑在一个较大的开启度并保持在稳定的开启位置,则阀瓣和相关的运动部件可能会处于一种持续振动的状态。
For this Angle of attack the corresponding velocity distribution is constant for the second segment.
这个迎角相应速度分布是固定的第二部分。
It was devoted to the relative damping measurement for overdamped geophone with a moving coil of constant velocity.
对动圈式恒速度型过阻尼地震检波器相对阻尼系数的测量方法进行了研究。
Then a vector control method with speed closed-loop and magnetic linkage closed loops put forward, which is based on the constant velocity by means of stator flux-oriented vector control.
在基于定子磁场定向的矢量控制恒线速运行控制方案的基础上,提出了一个速度闭环、磁链闭环的矢量控制方案。
Based on this model, the flow structure in constant velocity section of downer was calculated, and discussed.
依据此模型对下行床恒速段流动结构进行了计算并进行了讨论。
Unlike in a pure liquid in which the pressure wave velocity is constant, the wave velocity in gas-liquid mixtures varies with pressure.
在混合物中压力波速不象在纯液体中波速那样是恒定的,汽液混合物中的波速随压力变化。
Generally, it is hard to realize constant velocity control by means of closed-loop control based on motor steady equivalent equation.
一般基于电机稳态等效方程的闭环控制很难实现恒线速运行控制。
Pump, air pump and so on generally is pulling by squirrel - cage motor, moving in constant velocity.
泵、风机类负载通常采用鼠笼式异步电动机拖动,恒速运行。
Introduction was given to the principle of auto-control system for constant filtration velocity and constant water level in No.
介绍了东莞第三水厂恒滤速、恒水位过滤自控系统的原理,探讨了水位控制精度低的原因及改进方法。
By means of study on velocity field constant in flue, a method used to measure average velocity of flue gas was presented.
通过对烟道“速度场常数”的研究,提出了利用速度场常数监测烟道烟气平均流速的方法,同时研制出速度场常数自动检测装置。
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。
The results show that the depth and diameter of craters change linearly with the projectile diameter when the impact velocity is a constant.
结果表明,弹丸撞击速度一定时,弹坑深度和弹坑直径均与弹丸直径呈线性关系。
Pressing thin wall components requires Constant velocity while the operation process.
薄壁零件在冲制过程中要求匀速拉延成形。
Then approximate wave impedance is computed after background velocity has been obtained by making constant-velocity scanning.
并在常速扫描取得背景速度的基础上计算近似波阻抗。
A basic assumption concerning source motion is to consider it to be of constant velocity with random perturbations over the observation intervals.
目标运动的基本假设是在一段观测时间中保持常速度,并有随机速度扰动。
A basic assumption concerning source motion is to consider it to be of constant velocity with random perturbations over the observation intervals.
目标运动的基本假设是在一段观测时间中保持常速度,并有随机速度扰动。
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