最近发现了一个据估计有近500,000年历史的沉积物，该沉积物由木炭、燃烧的动物骨头和烧焦的岩石组成。
A site containing a deposit, estimated to be nearly 500,000 years old, consisting of charcoal, burned animal bones, and charred rocks, has recently been found.
但是，结果已经发生了很大变化，可能是因为对人类活动生成的甲醇氯仿物估计不准造成的。
But the results varied widely, possibly because of inaccurate estimates of methyl chloroform released by human activities.
科学家估计，如果这条无名水道出现在陆地上的话，就其水流量而言，可以荣登榜单名列世界第六，因为它携带的高浓度海水量和沉积物达到泰晤士河的350倍。
If found on land, scientists estimate the so-far unnamed waterway would be the world's sixth largest river in terms of the amount of water flowing through it.
这些估计数值依据的是阅读信息，比如在网上或出版物上阅读电子邮件、文本信息，以及我们在电视或收音机上看见或听到的信息。
The estimates are based on reading information, such as in emails, text messages, on the internet or in publications, as well as what we see and hear on the television and radio.
粗略估计大概一半气象站在建筑物林立区，这样一来会使气温上升出现夸张性的估计。
Many sceptics fear that, because roughly half of all weather stations are in built-up areas, this may have inflated estimates of a temperature rise.
据估计，在让全球变暖的二氧化碳排放物中，森林砍伐所带来的占到18%到25%。
Deforestation is estimated to account for between 18% and 25% of the carbon emissions heating the world.
事实上，美国哈佛大学的研究人员估计，用坚果类代替相同当量的碳水化合物摄入能够使得心脏病的风险降低30%。
In fact, Harvard University researchers estimate that substituting nuts for an equivalent amount of carbohydrates results in a 30 percent reduction in heart-disease risk.
他们估计这些化合物表明这块石头里还有几百万种不同的化学物质。
They estimate that those compounds indicate that millions of different chemicals are present in the meteorite.
了解她的体重，可以让拉波波特估计出，她的肝脏和腿部的肌肉能储存多少碳水化合物。
Knowing her weight allows him to estimate how many carbs her liver and leg muscles can store.
这一估计只代表科学家从2009年10月9号美国国家宇航局飞船在南极附近高速碰撞所激起的碎片羽状物中看到的。
The estimate represents only what scientists can see from the debris plume that was kicked up from the high-speed crash near the South Pole by a NASA spacecraft on Oct. 9, 2009.
有些喷雾状物是自然形成的，比如说浪花，或火上爆发，但是NASA（美国国家航空宇航局）估计大气中10%的此类物质属于人为造成。
Some aerosols occur naturally like sea spray and volcanic emissions, but NASA estimates ten percent of the total aerosols in the atmosphere are caused by people.
定义系统测试和验证策略，并参照计划执行。提供测试相关的项目交付物的工作估计。
Define system testing and verification strategy and execute according to plan. Prepare estimates for project deliverables related to testing.
世界卫生组织估计，他们当中许多人使用的炉子会产生很多烟，其中的微粒污染物每年都会导致近200万人提前死亡。
The smoky stoves that many of them use, the World Health Organisation reckons, produce particulate pollution that causes around 2m premature deaths a year.
大量的建筑物毁坏，伤亡人数估计已超过十万人。
The damage to buildings is extensive and the number of injured or dead is estimated to be over 100, 000.
这条纹状泥土底层是烂泥，其上一层科学家估计可能是原油。再往上(也就是最上面)是两英尺厚的粘稠物，Asper称其为——粘稠的鼻涕(译者注：看起来很恶心啊，这科学家幽默感不好啊)，这粘稠物极有可能是由原油和细菌组成的。
Meaning on the bottom is mud, then a layer of something they presume to be oil, and on top of that a two-inch thick goop that Asper calls "slime snot," possibly made up of oil and bacteria.
估计和烹饪的道理一样，用淀粉或某种填充物，我也不清楚，反正是进行塑形。
It's kind of — there must be something in cooking like that -use cornstarch or something, a filler -i don't know — just to make — give something body.
联合国环境规划署曾估计，单单建筑物就占了全世界能源消耗和碳排放的三分之一。
The United Nations Environment Programme has estimated that buildings alone contribute to over one third of global energy use and carbon emissions.
据估计在自然界中大约90%以上的碳水化合物以多糖形式存在。
It is estimated that more than 90% of the considerable carbohydrate mass in nature is in the form of polysaccharides.
超负荷一般是对吊物实际重量估计不准所致，被吊物重量越大，重物产生的倾倒力矩越大。
Overload is generally due to the actual weight of suspended goods are not allowed to be estimated, the greater the weight of the hanging object, the greater the weight of the dumping moment.
可靠度设计方法企图定量地研究这种不确定性，并估计它对建筑物安全性的影响。
The reliability design method attempts to quantitatively study their uncertainty and estimate its influence on the safety of a structure.
可靠度设计方法企图定量地研究这种不确定性，并估计它对建筑物安全性的影响。
The reliability design method attempts to quantitatively study their uncertainty and estimate its influence on the safety of a structure.
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