A large amount of burrow fossils are found in pelitic siltstone in the middle Changzhougou Formation of the Mesoproterozoic in the Yanshan area.
在燕山地区中元古代常州沟组中发育有大量的潜穴化石，潜穴产于常州沟组中部的泥质粉砂岩中。
The Yanshan area is the most developed region of the Meso - and Neoproterozoic stratum in north China, the whole area has continuous outcrops, complete stratum and steady deposition.
燕山地区是中国北方中—上元古界地层最为发育的地区，整个地区露头连续、地层齐全、沉积稳定。
A close research has been carried out on the intrusion age, occurrence and genetic type of granitoid rocks in east section of Yanshan area. Three metallogenic series have been pointed out.
详细研究了燕山东段地区花岗岩类的侵入时代、产出形式和成因类型，指出该区与花岗岩有关的三个金属成矿系列。
The Mesozoic volcanism in Yanshan area temporarily and spatially corresponds with the regional tectonic events, which might be a consequence of deep lithospheric processes and multi-plate interaction.
燕山地区岩浆活动与构造事件有较好的偶合关系，其构造岩浆活动可能是板块相互作用和深部岩石圈活动的共同结果。
Experimental study indicated that Yanshan Mountain area possesses the fundamental natural conditions for bulb production of tulips.
试验研究证明燕山地区具备了郁金香种球生产的基本自然条件。
Terrain from the northwest to the southeast steps down, to the north is the southeastern edge of the Inner Mongolia plateau, the central is the lower mountain area, the south is the Yanshan mountains.
地势自西北向东南阶梯下降，北部为内蒙古高原的东南边缘，中部为浅山区，南部为燕山山脉。
Wenjisang - Wennan area had experienced Yanshan and Himalayan movement, and resulted in a series of complicated structural traps such as faulted anticline and faulted nose, etc.
温吉桑-温南地区历经燕山、喜山运动，形成了一系列成排成带展布的断背斜、断鼻等复杂构造圈闭。
Yanshan tectonic deformation resulted in intense thrusting, folding and denudation in the area to the south of Sichuan Basin and mainly played destroying role to oil gas pools;
燕山期构造形变对齐岳山断裂以西的四川盆地以外的南方广大地区产生了强烈冲断、褶皱及抬升剥蚀，对油气藏主要起破坏作用；
The Fuji, Ralls and Golden Delicious of apple varieties, 120 samples were collected from 20 orchards in Yanshan mountain area and the leaf n, p, K contents were analyzed.
采集了燕山山区20个苹果园富士、国光和金冠等品种的120份叶样，对叶片中氮、磷和钾含量进行了分析。
The western Liaoning Province is a low mountain and hills area and is the eastern extension of the famous Yanshan mountain chain.
辽宁省西部属于低山丘陵区，为著名的燕山山脉之东段。
In the late Yanshan orogeny, this area was characterized by brittle fracture.
燕山晚期本区以脆性构造为主，断裂构造发育。
A 8 years long term experiment was conducted on the high yield area of plain at the foot of Yanshan mountain.
通过连续8年长期定位试验，研究了不同施肥方式对燕山山麓平原高产粮区褐土土壤肥力和作物产量的影响。
A 8 years long term experiment was conducted on the high yield area of plain at the foot of Yanshan mountain.
通过连续8年长期定位试验，研究了不同施肥方式对燕山山麓平原高产粮区褐土土壤肥力和作物产量的影响。
应用推荐