1.
Study on the Bryoflora and Eclogy of the Mountainous and Hilly Area in the North of Yanshan Mountain and Its Adjacent Sandland
燕山北部山地丘陵及毗邻沙地苔藓植物区系与生态学研究
2.
Species Diversity of Different Plant Communities in West Region of YanShan Mountain
燕山西北部山地不同植物群落物种多样性研究
3.
The Yanshan Hills provide a natural defence for Beijing.
燕山是北京的天然屏障。
4.
Beijing Yanshan Petrochemical Corporation
北京燕山石油化工公司
5.
Yanshanian Rhythm of Volcanic Activity and Orogenic-Deef Prcocesses in Yanshan-Liaoning Area;
燕辽地区燕山期火山活动节律与造山—深部过程
6.
The harbour here boasts a long history, being visited frequently by seafaring traders from northern Shandong Province as early as the fourth century of our era.
秦皇岛港开发甚早，公元4世纪北燕时，山东北部的居民就经常来此贸易。
7.
Qinhuangdao, which lies at the foot of Yanshan Hills on the coast of Bohai Sea in northeast Hehei Province, is a place of great strategic value. Since ancient times, it has been known as the gateway to the capital.
秦皇岛市在今河北省的东北部，背倚燕山，濒临渤海，地势险要，素有“京都锁钥”之称。
8.
Management Strategy Research for Construction & Installation Company of Beijing Yansan Petrochemical Corporation;
北京燕山石化建安公司经营战略研究
9.
The Distribution of Igneous Rocks and Lithospheric Thinning Processes of Yanshan Period in Yanshan Area, Beijing;
北京燕山地区燕山期火成岩分布及岩石圈减薄过程
10.
Canopy Gap Characteristic and Its Effects of Larix Principis-rupprechtii Plantation in Yanshan Mountain;
燕山山地华北落叶松人工林林隙特征及其影响
11.
Study on the biodiversity of planted Larix principis-rupprechtii forest in Yanshan mountainous regions
燕山山地华北落叶松人工林生物多样性研究
12.
On the Yanqi Institution in South Xinjiang in the QIng Dynasty;
清代天山南部维吾尔社会的“燕齐地亩”
13.
Characteristics of Yanshanian thrust nappe structures in Western Hainan
海南岛西部燕山期逆冲推覆构造特征
14.
Hongluoshan-Yangjiazhangzi,belong- ing to the east end of porphyry molyb- denum-copper metallogenic belt of Yan- shan,is founded in Yanshan folding zone at the north edge of North China plat- form.
虹螺山—杨家杖子地处华北地台北缘的燕山台褶带,位于燕山斑岩铜钼成矿带的东端。
15.
Shanhaiguan, lying in Qinhuangdao in Hebei Province, is adjacent to Yanshan Mountain and Bohai Sea, hence obtaining its name.
山海关位于河北省秦皇岛市，北依燕山，南濒渤海，因此得名。
16.
Study on Promoting Great-leap-forward Development of the Characteristic Economies in Yanshan Hilly Areas Hebei Province;
河北燕山地区特色经济跨越式发展研究
17.
Resource Investigation on Morchella of Yanshan of Hebei Province and Its Development and Utilization
河北省燕山区羊肚菌资源调查及开发利用
18.
Studies on Issues Related to the Development of Fruit Industry in Yanshan Area of Hebei Province and Countermeasures
河北省燕山地区林果产业发展问题及对策研究