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- the Yanshan epoch 燕山期
- Duhuangling gold deposit occurred within the quartz diorite of Late Yanshan Epoch. 杜荒岭金矿床赋存于燕山晚期的石英闪长(斑)岩中。
- The gold 、 silver 、 polymetallic deposits is mostly formed in two historic era, namely former Cambrian and Mesozoic Yanshan epoch . 华北板块北缘的金银、多金属矿床主要形成于两大地质历史时期,即前寒武纪和中生代燕山期。
- Duhuangling gold deposits occurred in the quartz diorite(porphyry)of Late Yanshan Epoch,the deposits are directiy controlled by EW trending fault structure zone. 杜荒岭金矿赋存于燕山晚期的石英闪长(斑)岩中,严格受近EW向断裂构造带控制。
- The Yanshan Hills provide a natural defence for Beijing. 燕山是北京的天然屏障。
- The gold deposits, related to volcanic-subvolcanic-porphyry metallogenic series of Yanshan epoch in Northern Jiangxi Province, belong to one of the most important gold metallogenic series. 摘要燕山期火山-次火山-浅成斑岩金矿成矿系列构成了赣北地区一个重要的金矿成矿系列。
- Northwest city is the Yanshan mountains, southeast city is plain. 城市西北是燕山山脉,东南是平原。
- The past epoch is gone, never to return. 过去的时代已经一去不复返了。
- The Mesozoic intracontinental orogeny of the Yanshan Mountains developed on a weak zone within the craton. 摘要中生代燕山陆内造山带是在克拉通软弱带上发育起来的。
- It is believed that the dynamic source of the tectonic seesawing of East Asia is related to the Yanshan movement. 这种巨型构造地貌翘变的触发动力源与燕山运动密切相关。
- The Yanshan region is one of the regions where the Neoproterozoic Qingbaikou system is well developed. 摘要燕山地区是中国新元古界青白口系出露最好、层序较为完整的地区。
- They have undergone multiple tectogenesis and fixed in the Yanshan movement at the end of Jurassic period. 它们经历多次构造运动形成,但主要定型于侏罗纪末的燕山运动。
- GuBeiKou provided vital access to a road that runs north-south across the YanShan Mountains. 古北口有一条南北走向横穿燕山山脉的重要通道。
- The teaching method marked a now epoch in education. 这种教学方法标志着教育的新时代。
- It is suggested that the deposition of the Qingbaikou system in the Yanshan region represents the cover of the North China block. 认为燕山青白口纪的沉积为华北陆块上真正的盖层沉积。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The electronic processing practice of the Yanshan University has improved greatly in the recent years and forms our characters. 摘要近几年燕山大学电子工艺实习基地发展迅速,形成了特色,但在实践中还存在一些问题。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Goes to Jinan Kamba silk guesthouse mountain main road 234, rides several groups vehicles to be good, I in the Yanshan grade separation. 您的位置:我也知道>地区>山东>济南市>去济南康巴丝宾馆山大路234号,坐几路车好,我在燕山立交。