由这些颗粒物质组成的地层很常见，通常位于土壤下方看不见的位置。
Beds of this material, out of sight beneath the soil, are common.
它们的确是星云物质组成的团块，其组成物质可能与行星形成时的物质相似。
They are truly lumps of nebular matter, probably similar in composition to the matter from which planets were assembled.
我们是由软性物质组成的。
我们居住的世界是由物质组成的。
我们生活于其中的世界是由物质组成的。
我们生活于其中的世界是由物质组成的。
地球是由什么物质组成的？
土壤由各种化学物质组成。
他们同人类一样由物质组成，但他们的身体不分部件。
They're made of matter just as human beings are, but their bodies aren't compounded of separable elements.
宇宙是由物质组成的。
这一高地的物质组成可能和其西部沟壑纵横的区域是一样的。
It is possible the plateau is made up of the same material as the highly fractured mounds in the west.
宇宙中的任何物体都是由带有正电荷和负电荷的物质组成的。
Everything in the universe - metals, gases, dogs, doughnuts - is made of materials with positive and negative charges.
宇宙中的任何物体都是由带有正电荷和负电荷的物质组成的。
Everything in the universe -metals, gases, dogs, doughnuts -is made of materials with positive and negative charges.
物理学家声称，它甚至有望探测到由反物质组成的“反宇宙”。
It may even detect an 'anti-universe' made of antimatter, the physicists say.
按一般标准衡量，地核是由相当致密的物质组成的。
Judge by ordinary standards, the core is made of rather dense stuff.
大多数在这里销售的药茶都只不过是很多不知名物质组成的混合物。
Most of the herbal teas sold here are simply flavorful combinations of unspecified composition.
地质学研究地球的物质组成、地球的结构及地球的形成过程。
Geology deals with the composition of Earth materials, Earth structures, and Earth processes.
人们认为暗物质是由将近占宇宙四分之一质量的不可见物质组成的。
Dark matter is thought to be an invisible substance that makes up almost a quarter of the mass in the universe.
你是由无生命的化学物质组成的；那么，又是什么使你有了生命呢？
You are made up of lifeless chemicals; what makes you alive?
美国的粒子物理学家在探索为何现行的宇宙主要由正物质组成的过程中又进了一步。
US particle physicists are inching closer to determining why the Universe exists in its current form, made overwhelmingly of matter.
下一步是设法很巧妙地用由水与黏土矿物质组成钻探泥浆堵住原油的涌出。
The next step is to try to staunch the flow proper with drilling mud, a mixture of water and clay minerals.
剩下的96％则由天文学家也不知道的物质组成，它们甚至无法被探测或理解。
The other 96 percent is made of stuff astronomers can't see, detect or even comprehend.
它们常被误认为是水母，但事实上葡萄牙僧帽水母是有一群工作着的有机物质组成的。
Often mistaken for a jellyfish, the Portuguese man-of-war is actually made up of a colony of organisms working together.
剩下的主要由暗物质，以及原子分子等仅占宇宙物质总量的4%左右的普通物质组成。
The rest comes primarily from dark matter, with ordinary matter—atoms and molecules—contributing just 4 percent or so to the total makeup of the universe.
从量子层面来说，空间中一直不断出现由一个正粒子和与其对应的反物质组成的反粒子虚偶。
At the quantum scale, virtual pairs consisting of a particle and its antimatter equivalent are constantly popping into existence.
因此，天文学家们认为，宇宙的4%由普通物质组成，22%由暗物质组成，剩下的74%是暗能量。
With these results, scientists concluded that the cosmos is made up of 4% normal matter, 22% dark or invisible matter and 74% dark energy .
中子星是超级大行星生命末期大爆炸后，紧密的高密度内核物质组成的，其外部物质随着大爆炸漂离。
Neutron stars are the super-dense compact cores of massive stars whose outer shells have been blasted away in violent explosions at the end of their lives.
中子星是超级大行星生命末期大爆炸后，紧密的高密度内核物质组成的，其外部物质随着大爆炸漂离。
Neutron stars are the super-dense compact cores of massive stars whose outer shells have been blasted away in violent explosions at the end of their lives.
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