In the process of the collision with the interstellar matter in the orbit around the sun,Venus and Mercury gain the re.
本文在行星物质共同形成学说基础上,假定太阳系形成初期,所有大行星都一样顺向自转,在与公转轨道上星际物质碰撞过程中,因物质密度的不均匀分布使金星和水星获得了反向的角动量,形成了现在的自转状态。
It is shown that the RISS theory can explain the observed structure functions well if the power-law spectrum of electron density inhomogeneities in the interstellar medium has an index β=4.
利用衍射闪烁测量所获得的星际介质参数和连续介质的折射闪烁理论，计算了多频率（０。
microscopic particles in the interplanetary medium.
行星际物质中极小的颗粒。
A star is formed when a cloud of gas collapses from the interstellar medium toward high density.
一个气体云自星际物质中坍缩，密度达到很高时，即形成了一个恒星。
Molecular clouds play an integral role in the prestellar evolutionary sequence of interstellar matter.
分子云在星际物质的星前期演化序列中起着不可缺少的作用。
It also means that the comet is not made of small, pristine interstellar materials either.
这同样也表示彗星不是由少量、原始星际物质构成的。
We observe in the galaxy much larger, denser, and more massive aggregates of cold interstellar matter.
在银河系中还观测到大小，密度和质量都要大得多的冷星际物质团。
These filaments reveal where the shock wave is encountering lower-density, more uniform interstellar material.
纤维揭示的是激波与更均匀的低密度星际物质相遇的地方。
Without exaggeration we would claim that the problem of the condensation of interstellar matter into stars is only now being placed on a firm scientiic footing.
我们可以毫不夸张地说，星际物质凝聚成为恒星的问题只是到了今天才有了坚实的科学基
Stars condense from the matter scattered thinly through interstellar space.
恒星是疏散在星际空间的物质凝聚而成的。
Characteristics of the Propagation and Evolution of Interplanetary Coronal Mass Ejections in the Heliosphere;
行星际日冕物质抛射在行星际空间的传播和演化规律
Together, these particles form that most diffuse and insubstantial of substances-- interstellar dust.
聚集在一起，这些微粒形成了大多数弥漫、弱的物质——星际尘埃。
An increase in the mass of a celestial object by the collection of surrounding interstellar gases and objects by gravity.
吸积，天体增大因重力吸引星际间的物质而引起天体的增大
Together, these particles form that most diffuse and insubstantial of substances -- interstellar dust.
聚集在一起，这些微粒形成了大多数弥漫、脆弱的物质——星际尘埃。
Spitzer, L. Jr., Physics Processes in the Interstellar Medium, Wiley, New York, 1978.
斯必泽(蔡贤德译)，《星际介质物理学》，科学出版社，北京,1988。
Antagonistic Substances and Screening of Rhizospheric Spore-producing Bacilli Against Tobacco Brown Spot;
防治烟草赤星病根际芽孢杆菌的筛选及其抗菌物质研究
interstellar space including streams of protons moving from the stars.
星际空间中的从恒星发出的质子流。
The star indicates a property of a pure substance or a collection of pure substances.
星号表示纯物质或纯物质集合的性质。
Stars are born from a kind of primal soup known as the interstellar medium.
恒星是由一种称为星际介质的“原汤”形成的。
A galaxy that is made up of antimatter.
反星系由反物质构成的星系