我们想知道食物与被污染的表面接触的时间长短是否会影响细菌转移到食物上的速度。
We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.
所以沉积物被运输，然后沉积，随着时间的推移，它在地球表面形成了层。
So sediment is transported and then deposited and it forms layers on the Earth's surface over time.
表面上的细菌总数更为重要，且在初次注入细菌后，细菌总数会随着时间推移而逐渐减少。
The overall number of bacteria on the surface mattered more, and this decreased over time after the initial introduction.
“菲莱”号从地球出发的旅行已经花了十年的时间！科学家们不知道彗星的表面会是什么样子。
The trip from Earth by "Philae" had taken ten years! The scientists had no idea what the surface of the comet would be like.
湿地是指多沼泽的区域，软而湿的陆地，一年中的大部分时间有水覆盖着土壤、或是有水存在于土壤表面或接近土壤表面的地方。
Wetlands are areas of marshy, swampy land, areas where water covers the soil, or is present either at or near the surface of the soil for a large part of the year.
在6个多小时的时间里，金星在太阳表面稳步前进。
For over six hours, the planet Venus steadily inched its way over the surface of the Sun.
然而，更新的数据表明，至少在该星球表面的一些部分的确存在过液态水，且存在于过去很长的一段时间内。
However, more recent data imply that at least some parts of the planet did in fact experience long periods in the past during which liquid water existed on the surface.
当下降的水位低于内表面刻下的小时线，表示经过了多少时间。
The falling water level denoted the passing hour as it dipped below hour lines inscribed on the inner surface.
一些科学家推测，火星在早期很长时间里可能都有以河流、湖泊，甚至海洋装点着它的表面。
Some scientists speculate that Mars may have enjoyed an extended early period during which rivers, lakes, and perhaps even oceans adorned its surface.
如果风暴的最大持续时间为1分钟，表面风速至少为65米/秒，就会被列为超级台风。
A storm is classed as a super typhoon if it reaches maximum sustained 1-minute surface winds of at least 65 m/s.
这个小球可以在墙上，物体表面上，亦或是你的手腕上投射时间，但是一旦被你家的狗狗踢弄和当做玩具时，它也是很容易就不翼而飞的。
The orb will project the time onto a wall or surface or your wrist and easily be lost when kicked or played with by a dog.
与此相反，相对论预测，时间在引力场作用下要放慢，例如，在地球表面运行的时钟略慢于高度深空。
Instead it predicts that time slows down in a gravitational field, making clocks run a little slower on Earth's surface than in deep space.
之后激光高度计将参照光速，计算出反射脉冲的渡越时间，从而获得飞船与月球表面之间的距离。
From the return pulse, LOLA determines the time of flight which, accounting for the speed of light, reveals the distance from the spacecraft to the lunar surface.
手表上的三条轨道可以在表面旋转来表示时间，而秒圈则会每时每刻都在变化。
Those three line are rotating around the watch and show the time, while the seconds line is going around all the time.
那段时间，我的那些“认同感”的问题一直压抑在平静生活的表面之下。
At the time, those questions of identity still lingered below the surface, even though I always knew I would restart my career.
因此大规模的喷发能降低全球表面平均温度数度，时间持续数年。
Massive eruptions can cool the global average surface temperature by several degrees for several years.
不过，在上图中可以看到，即便是在空闲时间，太阳的表面也依然是个繁忙的地方。
The above image shows, however, that even during off days the Sun's surface is a busy place.
机床数控系统可能会成为复杂3d模型、航空件和医疗零件加工中减少循环时间、提高精加工表面质量的障碍。
A machine tool's control can be a barrier to reducing the machining cycle time and improving the finish of complicated 3d molds, aerospace parts or medical-device components.
麦当劳的薯条比一般的更脆也更薄，说明他们表面过油的时间也更长，杀灭了细菌原体也降低了水分含量。
They're crisper and thinner than regular fries, which means that they’re exposed to greater heat per surface area, killing pathogens and reducing water content.
麦当劳的薯条比一般的更脆也更薄，说明他们表面过油的时间也更长，杀灭了细菌原体也降低了水分含量。
They're crisper and thinner than regular fries, which means that they're exposed to greater heat per surface area, killing pathogens and reducing water content.
冲破表面，需要一点时间。
细菌在吸附性表面的存活时间不长，比如在报纸上可能只能存活几分钟。
Microbes don't fare too well on absorbent surfaces, and might survive only minutes on newspaper.
请不要这样假设，有些人表面冷淡是因为他们有优越感或是没时间应付你。
Do not assume that if someone is cold it is because they think they are better than you or don't have time for you.
信使号在近距离探测一段时间后就能发回水星那凹凸不平表面的局部地图。
Messenger has already been able to return a partial map of the planet's crater-filled surface after just a handful of flybys.
收入的极度不平等会造成文化上的分离。 随着时间的推移，表面上文化显示出不健康状态，而其肌体亦受到侵蚀。
Yet extreme income inequality causes a cultural separation that is unhealthy on its face and corrosive over time.
除非您怀疑引导盘有问题，否则不要选yes，因为检查介质表面要花很长的时间，而且大多数情况下这是不必要的。
Select yes only if you suspect a problem with the boot disk, because it takes a long time to check the media surface, and most of the time this is unnecessary.
通过分析每个条纹升降的方式，系统软件在不到一秒的时间里就可构造出手指表面的三维模型，保证每个峰谷都处在各自合适的位置上。
By analyzing the way each line rises and falls, the software builds a 3-d model of the surface of the finger in less than a second, with each ridge and valley in its proper place.
如果Gliese 581g上的生命也能进化，它肯定是花费了数亿年的时间来适应行星表面。
'if life can evolve, it's going to have billions and billions of years to adapt to the surface.
如果Gliese 581g上的生命也能进化，它肯定是花费了数亿年的时间来适应行星表面。
'if life can evolve, it's going to have billions and billions of years to adapt to the surface.
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