The lunar soil (regolith) contains iron, aluminum, calcium, silicon, titanium, and oxygen, as well as trace amounts of lighter elements such as carbon, sulfur, and nitrogen.
月球的土壤(风化层)含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。
"People say it's good, maybe because there's a little alcohol in it, too," he said, referring to the trace amounts of alcohol that come from the brewing process.
“人们都在夸它优秀，大概是因为它含少量酒精，”他说，提到少量酒精，是它在酿造过程产生的。
They occur in such trace amounts in natural, or "whole," coal that they aren't a problem.
它们在天然煤(或称“全”煤)中仅以痕量存在，并不构成问题。
Our planet has always harbored water. The rubble that coalesced to form Earth contained trace amounts—tens to hundreds of parts per million—of the stuff.
虽然地球上的岩石或多或少都含有一定量的水，但是科学家认为这些水不足以形成今天的海洋，因此他们将目光转向太空，去寻找海洋的起源。
Other stars, like our Sun, might have trace amounts of zirconium -- maybe one atom in two billion -- but LS IV-14 116 has one zirconium atom for every 200, 000 atoms.
另一些恒星，比如我们的太阳，可能探测到大量的锆约二十亿中有一个锆原子，但恒星LSIV-14 116中则达到每二十万中就有一个锆原子。
The atmosphere is roughly 78 percent nitrogen, 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases.
地球大气含有大约78%的氮气、21%的氧气和痕量的水蒸气、氩气和二氧化碳等其它气体。
Animal products only contain trace amounts of vitamins, minerals and nutrients because animals eat plants (sea or land).
动物产品只含有微量的维生素，矿物质和营养素，因为动物吃植物(海洋或陆地)。
The idea that trace amounts of water in planetesimals could give rise to vast oceans may seem far-fetched until one considers how small an ocean can be relative to the size and mass of a planet.
星子中微量的水造就了宽阔的海洋这一观点也许看起来不切实际，直到人们认识到相对于一颗行星的质量和体积，浩瀚的海洋是多么的渺小。
The idea that trace amounts of water in planetesimals could give rise to vast oceans may seem far-fetched until one considers how small an ocean can be relative to the size and mass of a planet.
星子中微量的水造就了宽阔的海洋这一观点也许看起来不切实际直到人们认识到相对于一颗行星的质量和体积，浩瀚的海洋是多么的渺小。
They also require trace amounts of iron which limits phytoplankton growth in large areas of the ocean because iron concentrations are very low.
它们还需要微量的铁，由于海洋中铁的含量非常低，限制了浮游植物大面积的生长。
Fear of shark attacks keeps us onshore, and trace amounts of chemicals in our water supply terrify us - though the chance of harm may be slight.
担心鲨鱼的攻击而呆在岸上，我们日常用水中标出的化学成分含量也让我们害怕——尽管有害的可能性十分微小。
In normal coal samples, quartz and other minerals are found only in trace amounts.
在一般的煤的样板中，石英和其他矿物质的含量是相当低的。
In fact, until 1900, salt mined and used by residents in the Kanawha River Valley in West Virginia contained trace amounts of iodine.
事实上，一直到1900年，西弗吉尼亚州的卡诺瓦河谷居民开采并食用的盐都富含碘。
Astronauts sent as part of NASA's Apollo missions found trace amounts of silver, along with gold, on the near-side (Earth-facing side) of the Moon.
执行Nasa阿波罗计划的宇航员曾在月球近地面(地球可见面)发现了银和金元素的踪迹。
Previously the agency said the trace amounts of BPA that leach out of food containers are not dangerous.
之前这个机构说食物容器中渗出的微量bpa并没有危害。
Trace amounts of radiation from Japan have been detected across the United States and Europe.
从日本到达美国及欧洲的辐射量及其微弱。
Both the FDA and health Canada state that those trace amounts pose negligible health risks.
不论食品及药物管理局还是加拿大的卫生部，都认为二恶英少到可以忽略的地步。
Each year, only a small number of truckloads are found to be "hot milk," containing trace amounts of antibiotics. In those cases, the milk is destroyed.
每年，只有很少一部分的牛奶被发现是“热奶”(hot milk)，包括微量的抗生素，这种情况下，牛奶会被销毁。
ScienceDaily (Dec. 20, 2010) —Study suggests that trace amounts of water created oceans on Earth and other terrestrial planets, including those outside the solar system.
《每日科学杂志》(2010年12月20日)——研究表明微量的水创造了地球和其他类地行星上的海洋,包括那些在太阳系以外的类地行星。
Now, the company admits that the epoxy liners in its bottles used to contain trace amounts of BPA.
现在，公司承认在它的这个水壶里面的环氧衬里里面曾经含有微量的BPA。
It's found in trace amounts in everything from children's costume jewelry to imported candies to soil and drinking water.
从儿童的服装首饰到进口的糖、肥料和饮用水中的任何东西都已发现含有微量铅。
Ingredients also include sodium, calcium, silica, sulfur and a high macro-molecular complex-all in trace amounts.
成分中还包括微量的钠，钙，硅，硫和高宏观分子混合物-所有都是微量的。
The lack of evidence of harm to humans by trace amounts of melamine because of the varied human diet and other factors.
由于多样化的人类饮食和其它因素，缺少表明少量三聚氰胺会对人类的伤害的证据。
In large amounts it is toxic, but in trace amounts it enables organisms to produce enzymes that help cells to function.
大剂量时是毒物，但在微量是它能使有机体生成能量使细胞发挥功能。
In large amounts it is toxic, but in trace amounts it enables organisms to produce enzymes that help cells to function.
大剂量时是毒物，但在微量是它能使有机体生成能量使细胞发挥功能。
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