PVT represents pressure, velocity and time. Don't calculate single factor in choosing material of bearings.

PVT代表压力、速度和时间，在选择轴承材料时，不能把单个因素分开考虑。

youdao

The influence of fuel gases concentration and ambient temperature on combustion velocity and time are studied.

定量地计算了可燃物浓度、环境温度与反应速率、反应时间的关系；

youdao

The effects of temperature, velocity and time of heating on the rate of drying pelleted corn seeds were tested by means of the drying tester.

利用丸粒化玉米种子干燥试验装置，研究了风温、风速、加热时间对丸粒化玉米种子干燥速率的影响。

youdao

It's very interesting because velocity seems to require two different times to define it -- the initial time and the final time.

这非常有趣,因为速度似乎需要两个时间才能算出来,初时刻和末时刻

耶鲁公开课 - 基础物理课程节选

That limit will be some arrow we can call the velocity at the time and it will always be tangent to the curve.

那个极限也就是一个矢量,我们称之为瞬时速度,并且它总是和轨迹相切的

耶鲁公开课 - 基础物理课程节选

What that means is, if you know the velocity of the given time and you know the initial velocity, you know what time it is.

这个方程的意义是,如果你知道某个给定时刻的速度,并且知道初速度,你就能知道运动的时间

耶鲁公开课 - 基础物理课程节选

This is arguably a fair way to handle community reviews -- weight reviews over time and look for velocity.

ENGADGET: This Is the Modem World: Review Sites Are Broken

One or more wearable motion trackers, connected to a smartphone, deliver real-time 3D joint angles, position and velocity.

ENGADGET: Xsens teases wearable 3D body sensors that won't cost, will track an arm and a leg (video)

For such a particle, it is possible to work out its velocity (from the time taken to pass between the two layers) and its trajectory (from the relative positions of the elements triggered in each sensor layer).

ECONOMIST: Orbital debris