燕山是北京的天然屏障。
中国石化工程建设公司和北京燕山石化公司建筑安装公司联合攻关研制。
China petrochemical construction company jointly with Beijing Yanshan petrochemical company, construction and installation company tackled key problems.
论述了水质改变对北京燕山石油化工有限公司化学水处理装置除盐系统的影响。
The effect of water quality changes on the desalting system of chemical water treatment at Beijing Yanshan Petrochemical Co.
燕山八景是北京的八处风景名胜的统称。
Yanshan eight sceneries "is the general designation of eight scenic spots of Beijing."
王忠祥：“编选者序”，《易卜生精选集》，潘家洵译。北京：北京燕山出版社，2004年。1-44。
Wang Zhongxiang. "Editor's Preface. "Selected Works of Ibsen. By Henrik Ibsen. Trans. Pan Jiaxun. Beijing: Yanshan Publishing House, 2004.1-44.
白河堡水库水面海拔600米以上，是北京最高的水库，因地处燕山亦称“燕山天池”。
The water surface of Baihebu Reservoir is over 600m above the sea level and it is the highest reservoir in Beijing. Because it is in Yanshan, so it is called "Yanshan Heaven Lake".
介绍了中国石化北京燕山分公司化工一厂，乙二醇装置的现状。从规模、技术、市场三方面论证了装置改造的必要性。
This paper introduces the current status of Yanshan ethylene glycol plant, demonstrates the necessity of plant modification from aspects of scale, technology and market.
介绍了中国石化北京燕山分公司化工一厂，乙二醇装置的现状。从规模、技术、市场三方面论证了装置改造的必要性。
This paper introduces the current status of Yanshan ethylene glycol plant, demonstrates the necessity of plant modification from aspects of scale, technology and market.
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