He started keeping tracks of sunspots, mapping them, so he wouldn't confuse them with any potential new planet.
他开始追踪太阳黑子，标注它们的位置，这样就不会把它们和任何潜在的新行星混淆了。
The tracks of the large animal were clearly printed in the sand.
这只大动物的足迹清晰地印在沙滩上。
We were walking along the bank of the Niger river, searching for the tracks of a hippopotamus that was ravaging the corn on Karim's farm.
我们沿着尼日尔河岸走着，寻找一头河马的足迹，它毁坏克莱姆村农场农作物。
"Each magstripe has three tracks of information," explains payments security expert Jeremy Gumbley, the chief technology officer of CreditCall, an electronic-payments company.
电子支付公司CreditCall的首席技术官、支付安全专家杰里米·冈布利解释说：“每个磁条都有三条信息轨迹。”
We followed the tracks of the rabbit into the woods.
我们循着兔子的足迹进入森林。
The tracks of mountain goats polka-dotted the dust ridge.
山羊的踪迹使土灰色的山脊上布满着斑斑点点。
The hunters followed the tracks of the animal for hours.
猎人循着动物的脚印追了几个小时。
The two tracks of the competition employ two different datasets, which we describe below.
比赛的两个Track 使用两个不同的数据集，我们下面会说到。
Our destination was a site where the tracks of two tigers had been seen around a fresh rhino carcass.
我们的目的地是一处有老虎出没的地方，有一只犀牛在那里刚死不久，旁边还有两只老虎的爪印。
There, the cells will be injected onto plates striped with tracks of a chemical they like to adhere to.
参赛细胞将被注射进一个培养皿中，在这些培养皿中事先已经被用这些细胞喜欢粘附的化学物质标记出了比赛跑道。
"We remain committed to both tracks of the P Five Plus One dual-track strategy," said Gonzalo Gallegos.
加莱戈斯说：“我们仍致力于5加1的双轨战略。”
There, the cells will be injected onto plates striped with tracks of a chemical they like to adhere to.
在这些测试点，细胞将被注入他们喜欢粘附的一种化学制品跑道的条纹板里。
If there is any attempt to remove one of the tracks of negotiations, then it's obvious the train will crash.
如果有人试图从谈判中移除一条轨道，很显然，火车会出轨。
My wife, Daniela, is a poet and carefully tracks of her submissions to journals, contests, and other events.
我的妻子Daniela是一位诗人，她总是仔细地记录她向杂志、比赛和其他活动的投稿。
Messi hasbeen listening to tracks of the band 'Oasis' on his iPod before games in SouthAfrica, reports The Sun.
南非参加世界杯时，梅西一直在用ipod听绿洲乐队的歌曲。
Here, tracks of particle collisions in CERN's Large Hadron Collider, create conditions just moments after the Big Bang.
在CERN(欧洲核子研究中心)的大型强子对撞机上，对粒子碰撞的跟踪为了解宇宙大爆炸之后瞬间情况创造了条件。
On a drying lake bed in Victoria, a farmer in 2007 alerted scientists to a major find: well-preserved tracks of a Diprotodon.
2007年一位农民警觉地告诉科学家，在澳大利亚维多利亚一条干涸的河床上有重大发现：多个保存完好的双门齿兽的足迹。
I explained that we could move the car fifty or sixty feet up the street, following the tracks of another car that was stuck farther up.
我见机解释道，推着车子沿着街道往北去50、60英尺，可以顺着前面那辆困着的汽车的印迹走。
Often I saw the tracks of a leopard, or recognized its powerful feline smell, and sometimes I heard the soft rasping of its hunting call.
我经常看到豹子的踪迹，或辨出它们强烈的气味，有时候听到它们捕猎的声音。
It looks like a convention center surrounded by the rings of Saturn, great tracks of solar panels providing all its hot water and electricity.
它看起来像是一个被土星环环绕的会展中心。由太阳能电池板铺成的巨型轨道提供了大厦所有的热水系统和电力系统的能源。
He said a comprehensive settlement, involving all the tracks of the peace process, can be reached only with the consent of all the parties.
他说，涵盖和平进程各个层面的全面解决巴以冲突，只能通过各方取得一致来实现。
The technology for converting the audio tracks of video via speech recognition to plain text indexed to time-code has been around for a while.
其实，把视频里的音轨用语音识别转化成文字索引并时间编码的技术已经有了。
They would return to their posts after arresting one group to find the tracks of several others who had crossed while they were away, Mr Hayes says.
海耶斯表示，在他们完成一次追捕后继续工作时发现一些人在他们不在岗位的时候已经越境了。
The best places to spot mice running around the tracks of the underground are Waterloo station (northbound on the Bakerloo line) and any platform at Oxford Circus.
观赏老鼠走过轨道的最佳地点是滑铁卢站（贝克卢线北行月台）以及牛津环岛站的任意月台。
They actually use the... the track, the... the skidding tracks of the wreck to calculate v prime, and then they can try to reconstruct the situation as it was before the collision.
他们实际是用轨迹，残骸的滑行轨迹,来计算出v’,就可以复原现场,和碰撞前一样。
There's no longer any need to endure eight tracks of filler for a couple of decent tunes, but will "album albums" like Radiohead's Amnesiac get the widespread hearing they deserve?
没有必要再忍受八音轨双声道了，音乐可以像电台司令的《失忆人》所受到的名副其实的待遇那样，以“精选专辑”的形式在电脑上广泛传播。
The recent tracks of the fox or otter, in the yard, remind us that each hour of the night is crowded with events, and the 28 primeval nature is still working and making tracks in the snow.
院子里雪地上，狐狸和水獭所留下的足迹犹新，这使我们想起：即使在冬夜最静寂的时候，自然界生物没有一个钟头不在活动，它们还在雪上留下痕迹。
The recent tracks of the fox or otter, in the yard, remind us that each hour of the night is crowded with events, and the 28 primeval nature is still working and making tracks in the snow.
院子里雪地上，狐狸和水獭所留下的足迹犹新，这使我们想起：即使在冬夜最静寂的时候，自然界生物没有一个钟头不在活动，它们还在雪上留下痕迹。
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