Our radar began tracking the jets.

我们的雷达开始追踪那些喷气式飞机。

We continued tracking the plane on our radar.

我们继续用雷达追踪那架飞机。

The research project involves tracking the careers of 400 graduates.

这个研究项目对400名毕业生的事业发展情况进行跟踪调查。

Meanwhile, TV use did not show this tracking.

但与此同时，电视使用并没有显示这种跟踪。

Few switch DNT on now, but if tracking is off it will stay off.

现在很少有人打开“禁追踪”选项，但如果追踪选项处于关闭状态，它就会一直处于关闭状态。

The key in the successful accomplishment of this process is accurate list tracking.

成功完成这一过程的关键是对列表的准确追踪。

He says that all wireless companies do some amount of location tracking as part of their networks.

他说，作为其网络的一部分，所有无线方面的公司都会进行一些位置跟踪。

Their waste tracking technology means that caterers can see how much food is being wasted and why.

他们的废品追踪技术意味着餐饮公司可以看到有多少食物正在被浪费，以及它们为什么被浪费。

The always-on Internet devices raise some novel possibilities, like tracking where students gather together.

这种永远在线的互联网设备带来了一些新的可能性，比如对学生聚集的地点进行追踪。

Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so.

获得 DNT 信号并不意味着任何人都必须停止跟踪，尽管一些公司已经承诺会这样做。

Nutrition scholar Marion Nestle of New York University spent a year informally tracking industry-funded studies on food.

纽约大学营养学学者马里恩·奈斯特花了一年时间，非正式追踪行业资助的食品研究。

If the ground stations tracking the satellites are not accurate to the millimeter, then the satellites cannot be accurate either.

如果跟踪卫星的地面站位置不能精确到毫米，那么卫星也是不可能精确的。

Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures.

其他科学家已经提议，要利用这个网络体系来追踪洋流，测量海洋和全球温度的变化。

By tracking people's e-mails and online posts, scientists have found that good news can spread faster and farther than disasters and sob stories.

通过追踪人们的电子邮件和在线帖子，科学家发现好消息比灾难和悲伤的故事传播得更快更远。

Heart rate tracking for three of the Alaska bears showed a drop from 55 beats per minute on average before hibernation to 14 erratic ones per minute in winter.

对三头阿拉斯加的黑熊的心率追踪显示出它们在冬眠前的平均每分钟 55 下降低到了冬天里每分钟飘忽不定的 14 下。

The band is labeled with a tracking number, and there is a phone number on the band for people to call for free, to report a banded bird they've found or recaptured.

这只手环上有一个追踪号码，还有一个人们可以免费拨打的电话号码，举报他们发现或捕获的标记雀鸟。

In 2015 these ants were joined in the desert by scientists from two Belgian universities, who spent a month in the extreme heat tracking the ants and digging out their nests.

2015年，比利时两所大学的科学家加入了这些蚂蚁的行列，他们来到沙漠，花了一个月的时间在极端的高温天气下追踪蚂蚁，挖掘蚂蚁的巢穴。

Mondrian's works are deceptively simple, but eye-tracking studies confirm that they are meticulously composed, and that simply rotating a piece radically changes the way we view it.

蒙德里安的作品看似简单，但眼球追踪研究证实它们是经过精心创作的，而且简单地旋转下一件作品，就会从根本上改变我们看待它的方式。

The study included 386 kindergarteners from schools in the Fast Track Project, a multi-site clinical trial in the U. S. that in 1991 began tracking how children developed across their lives.

这项研究涵盖了参加“目标追踪计划”项目的学校中的386名幼儿园学童，该项目是一个美国的多点临床试验项目，从1991年开始追踪儿童一生的发展情况。

With the use of eye-tracking technology, Julia Minson of the Harvard Kennedy School of Government concluded that eye contact can signal very different kinds of messages, depending on the situation.

通过使用眼球追踪技术，哈佛大学肯尼迪政府学院的朱丽亚·明森得出结论，眼神交流可以视情况而定传递截然不同的信息。

Ranchers are testing electronic tags on animals' ears to create a national cattle-tracking system.

牧场主正在检测动物耳朵上的跟踪器，以建立一个全国性的家畜跟踪系统。

Unluckily, a boat accident caused the tracking efforts to fail.

不幸的是，一场船只事故导致追踪工作失败。

She decided to put a tracking app on the kid's phone.

她决定在那孩子的手机上装个追踪软件。

Tracking the spread of a disease is an important step in stopping its outbreak.

追踪疾病的传播是阻止其爆发的重要一步。

We don't have tracking apps, but we have set some ground rules that my daughter must follow in exchange for us providing a phone.

我们没有追踪应用程序，但我们设定了一些基本规则，我女儿必须遵守这些规则，以换取我们为她提供的手机。

Modern methods for tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform consistently over a large area.

跟踪北极能种群的现代方法仅在20世纪80年代中期才被采用，而且，要在大范围内连续采用这种方法，其代价非常高昂。

By tracking down people who have been in contact with COVID-19 patients, health researchers can warn them, and keep COVID-19 from spreading further.

通过追踪与新冠肺炎患者接触过的人，卫生研究人员可以提醒他们，并阻止新冠肺炎的进一步传播。

I've found teens are more acceptable to tracking app when it is included as part of a family agreement to improve safety than when it is placed as a secret tool to watch them.

我发现，如果把追踪应用程序作为家庭公认的提高安全性的工具，而不是作为一个用于监视的秘密工具，那么青少年会更容易接受它。

The video reports a new study using an eye-tracking device.

视频报道了一项使用眼球追踪设备的新研究。

I've been looking for it everywhere and I am having a really hard time tracking it down.

我已经到处找遍了，但一直都没有发现它的下落。