A scheme of kinetic parameters estimation and real-time track occurrence of objects based on the CAD models is investigated.

提出了一种基于CAD模型的目标运动估计和目标轨迹实时生成方法。

youdao

Do bear in mind, though, that at this time of year the weather is very changeable and if the cloud suddenly descends, it's all too easy to wander off the track.

但是要记住，每年的这个时候天气变化无常，如果乌云突然降落，就很容易偏离轨道。

youdao

In order to track temporal hours during the day, inventors created sundials, which indicate time by the length or direction of the sun's shadow.

为了在白天追踪时间，发明家发明了日晷，它通过太阳阴影的长度或方向来指示时间。

youdao

But some employers frown on workers taking time away from their jobs to follow the games and keep track of their brackets.

VOA: standard.2009.03.25

The plan was to stay for a year or two, and then go back to Canada, and I lost track of time.

本来的计划是待一两年，然后就回多伦多，但是计划打乱了。

麻省理工公开课 - 固态化学导论课程节选

Time is short. And we are serious about implementing to the fullest extent that dual track policy."

VOA: standard.2009.11.30

What is the up time track record of the company, as verified by a third party and including scheduled maintenance?

FORBES: Is Your Data Safe In The Cloud?

As long as you do a bit of homework into the up time track record of the service you choose, you will be fine.

FORBES: Is Your Data Safe In The Cloud?

Every time a track is uploaded to or played on YouTube, every time it is sold by iTunes, streamed on Spotify, shared on a pirate network, liked on Facebook or tweeted about, it gives off a digital signal.

ECONOMIST: Music and technology: Digitally remastered | The