Thus, dark matter must exist, and it was wrenched apart from normal matter by the force of the collision of the clusters.
因此，暗物质一定存在，而且星云团的碰撞产生的作用力将暗物质同普通物质相分离。
With these results, scientists concluded that the cosmos is made up of 4% normal matter, 22% dark or invisible matter and 74% dark energy .
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。
Some of these particles are stable and form the normal matter, the others live for fractions of a second and then decay to the stable ones.
这些粒子中的一部分是稳定的并且构成了普通物质，其它的只存在一秒钟的几分之一，然后衰变为稳定粒子。
They found that the same general ratio of dark matter to normal matter prevailed in these distant, small clusters as for nearby, larger clusters.
对照邻近的、大的星系团，他们发现在遥远的、较小的星系团中，正常物质与暗物质的比例几乎是相同的。
Astronomers have deduced the existence of dark matter by observing its gravitational influence on normal matter which consists of stars, gas, and dust.
天文学家通过观察暗物质对恒星、气体、星际尘埃这类正常物质的引力影响来推论暗物质的存在。
This is a very normal matter! Do the petroleum business, and you must have the strength!
这是很正常的事！做石油，一定是要有实力的！
Antimatter is matter that is composed of the antiparticles of those that constitute normal matter.
反物质是由那些常态物质构成的反粒子组成的物质。
Only the Up and Down quarks are found inside atoms of the normal matter. The other quarks are made in particle accelerators.
普通正常物质的原子内部只有上、下夸克。而其它夸克是由粒子加速器产生的。
As pulsars are very dense, the matter should exist in the form different from normal matter, so nuclear matter-extension of nucleus, is good candidate.
因为脉冲星非常致密，其内的物质与寻常物质差异会比较大，所以核物质—原子核的延伸，是很好的候选者。
Dark matter is a form of stuff that does not interact with light, so cannot be seen, but makes its presence felt by exerting a gravitational pull on normal matter.
暗物质是一种不与光发生作用的物质，因而不可见。但是暗物质又是确实存在的，它与可见物质之间产生的引力效应证实了这一点。
10 years ago, scientists predicted that about half of the missing 'ordinary' or normal matter made of atoms exists in the form of low-density gas, filling vast Spaces between galaxies.
10年前，科学家们预言大约有一半由原子组成的“丢失”了的普通物质，以低密度气体的形式存在于星系间广阔的空间中。
When a piece of antimatter strikes the observatory and collides with "normal" matter, both particles immediately annihilate and are transformed into gamma rays - which Fermi can detect.
当一小块反物质击打天文台并与“正常”的物质相碰撞时，两个粒子都立即湮灭，并转变为伽马射线-费米就可以检测到它。
In clusters, most of the "normal" matter-the atoms that make up the stars, the planets and any being living on them-is in the form of hot gas and stars.
星系团中的大部分“普通”物质—组成恒星、行星的原子以及居住在其上的生命—以热气和恒星的形式存在。
In clusters, most of the "normal" matter-the atoms that make up the stars, the planets and any being living on them-is in the form of hot gas and stars.
星系团中的大部分“普通”物质—组成恒星、行星的原子以及居住在其上的生命—以热气和恒星的形式存在。
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