Market analysts predict that a huge wave of ethylene expansion in China is about to erupt. However, due to trade frictions between China and the United States, the supply of ethane in the United State..

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According to the website of the Emergency Management Department of Hubei Province, the Hubei Safety Production Committee has recently issued a notice that Hubei will establish a safety director system..

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All sewage pools in Ningbo Petrochemical Development Zone are sealed with covers and greened. The picture shows the 24-hour sewage outlet monitoring point of the research team on the sewage pool.　　Nin..

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ABSTRACT: This paper summarizes the characteristics and classification of traditional Chinese medicine sprays, the research progress of sprays and related fields, and introduces the quality control me..

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