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chemical history
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    During the past decade, molecular astronomy has greatly contributed to our knowledge of the structure of the Galaxy, chemical history of galaxy, mass loss from stars and molecular clouds and thus has led to a better understanding of the above mentioned subjects.
    十余年来年轻的分子天文学带来一系列新发现,推动了银河系结构、星系化学史、恒星物质流失、分子云物理等课题研究的新进展。
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  chemical history
Thermoanalytical techniques (TG, DTG, DTA and EGA) can be helpful in studying gel compositions and relating the chemical history and the role of the precipitant to the chemical properties of gels.
      
the rate of leaching of the particles is particularly sensitive to their "chemical history".
      
Because active sedimentation occurs mostly in the deep water areas of the lake, the sediment remains undisturbed and contains a record of the chemical history of the lake.
      
By movements taking place along this fault two durbachite blocks, each with a different physical-chemical history of consolidation, came into contact.
      
Interaction of X-ray Amorphous Aluminum Oxide with Lithium Carbonate: Effect of the Chemical History of Aluminum Oxide
      
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During the past decade, molecular astronomy has greatly contributed to our knowledge of the structure of the Galaxy, chemical history of galaxy, mass loss from stars and molecular clouds and thus has led to a better understanding of the above mentioned subjects.Summarizing briefly the different objects, this review concentrates on physical pro-perlies of molecular clouds, which concerns the formation of stars.The review consists of four sections which deal with1. The reseach objects of molecular astronomy,2....

During the past decade, molecular astronomy has greatly contributed to our knowledge of the structure of the Galaxy, chemical history of galaxy, mass loss from stars and molecular clouds and thus has led to a better understanding of the above mentioned subjects.Summarizing briefly the different objects, this review concentrates on physical pro-perlies of molecular clouds, which concerns the formation of stars.The review consists of four sections which deal with1. The reseach objects of molecular astronomy,2. Derivation of the parameters of molecular clouds,3. Observational results of molecular clouds,4. Theoretical problems of molecular clouds.

十余年来年轻的分子天文学带来一系列新发现,推动了银河系结构、星系化学史、恒星物质流失、分子云物理等课题研究的新进展。 本文在简介分子天文学之后,将集中对与恒星形成有关的分子云物理问题进行综述。 内容分为 一、分子天文学的研究对象 二、分子云物理参数的导出 三、分子云的观测 四、涉及恒星形成的分子云理论研究

 
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