片语

Middle and Lower Ordovician下中奥陶统

the middle upper ordovician中上奥陶统

middle lower ordovician中下奥陶统

early middle ordovician早中奥陶世

middle Ordovician Pingliang Formation中奥陶统平凉组

Middle Ordovician Epoch中奥陶世

early to middle Ordovician早中奥陶世

Middle and Late Ordovician中及晚奥陶世

英汉例句

• yijianfang formation of middle ordovician sedimentary period is the open platform of regional seawater shoaling with platform-inter-shallow patch reef sedimentary.

  中奥陶统一间房组沉积时期为区域性的海水变浅的开阔台地台内浅滩夹点礁沉积。

• the coral fauna developed rapidly from middle ordovician to early silurian in the yangtze region, and then dispersed to europe, north america and other areas.

  它们在扬子区中奥陶世和早志留世地层迅速繁衍，尔后扩散至欧洲、北美和其他地区。

• the lower to middle ordovician zitai formation is named by mu et al.

  华南下、中奥陶统紫台组命名地点在贵州印江紫台。

• the north-china type karst coal deposits mainly refer to the workable coal seams of permo-carboniferous system in mine areas endangered by water hazards from middle ordovician limestone.

  华北型巖溶煤田系指主采煤层主要受中奥陶统灰巖水害威胁的石炭二叠系煤矿区。

• the south tianshan area in the northern margin of the tarim microplate reflects archipelago nature during middle ordovician to silurian, and the plate motion continued for several billion years.

  塔里木微板块北缘的南天山地区在中奥陶世—志留纪显示多岛洋的构造格局，早古生代板块活动经历了上亿年。

• middle ordovician series in shibing are composed of carbonate facies in the lower part of shizipu formation and mudstone facies in upper part of shizipu formation, the baota formation is missing.

  施秉一带的中奥陶世地层主要由十字铺组下部的灰巖相和上部的泥灰巖相组成，而缺失宝塔期的沉积。

• there are two important manganese carbonate horizons in the middle ordovician and early sinian strata in central hunan province.

  湘中地区有中奥陶世和早震旦世两个重要的锰碳酸盐层。

• the reservoirs in baota formation of middle ordovician in south sichuan are characterized by low porosity and low permeability and belong to a fractured type.

  川南地区中奥陶统宝塔组储层具低孔低渗特征，属裂缝性储集类型。

• in recent years, it discovered in the regional survey of the scale of 1∶50000 that the early to middle ordovician absent in the southern baoshan of western yunnan.

  近年的1∶5万区调工作发现，在滇西保山南部地区缺失早中奥陶世沉积，这是一个值得探索的重大地质问题，因为过去认为施甸地层小区的寒武-奥陶纪为连续沉积。

• discovery of middle ordovician graptolite beds regarded as cambrian near gongcheng, north of guangxi is first be reported and discussed.

  首次报道和讨论了桂北恭城中奥陶世笔石地层。

• trace fossils from the middle ordovician lashizhong formation in zhuozishan, the northwest margin of ordos basin are studied systematically.

  首次对鄂尔多斯盆地西北缘桌子山地区中奥陶世拉什仲组的遗迹化石进行了系统研究。

• karst water from middle ordovician limestone can induce the most dangerous water hazards menacing mine safety.

  中奥陶统灰巖巖溶水对煤矿安全威胁最大。

• in early ordovician north qilian region again stretched and suffered second oceanization, up to middle ordovician a mature ocean basin with a trough-arc-basin system already formed.

  早奥陶世北祁连地区再次拉张，遭受第二次大洋化，到中奥陶世形成具沟弧盆体系的成熟大洋。

• from the suture line towards the north, an andesite line along sharburti mountain was the volcanic island arc developed from middle ordovician to middle-late silurian.

  由缝合线向北，沙尔布尔提山安山巖线是中奥陶世至中、晚志留世发育起来的火山岛弧。

• the guozhuang spring exposed in the middle ordovician limestone is one of complete-drainage and of erosion structure of ascending type.

  郭庄泉为一全排型、侵蚀—构造上升泉，出露于中奥陶纪灰巖中。

• the middle ordovician submarine spilite-alkaline volcanic rock association in the shihuigou area in the northern qilian mountains was the product of island arc volcanism.

  北祁连山石灰沟地区发育一套完整的奥陶纪岛弧火山巖系。

• in the period from middle ordovician to devonian, the central and southern ningxia area is the back-arc foreland basin in the north continental side of north qilianshan orogen.

  宁夏中南部地区在中奥陶世至泥盆纪是作为北祁连造山带北侧的弧后前陆盆地靠大陆一侧而存在的；

• the shoal and patch reef sub-facies in territorial seawater shallowing open platform facies are developed in middle ordovician yijianfang formation.

  中奥陶统一间房组沉积时期为区域性的海水变浅的开阔台地浅滩夹点礁沉积。

• the middle ordovician breccia is widely distributed in the second and fourth members of the lower majiagou formation and the third member of the upper majiagou formation in north china.

  华北地区中奥陶统下马家沟组第二、四段及上马家沟组第三段广泛分布着三层角砾巖。

• the main water source is fracture-karst water in middle ordovician carbonate rocks.

  主要的供水水源为中奥陶统碳酸盐类巖石中的裂隙-喀斯特水。

• the middle ordovician llandovery rugose corals are abundant in the yangtze region, especially in the early silurian.

  扬子区中奥陶世—志留纪兰多维利世四射珊瑚产出丰富 ，尤以兰多维利世最为繁盛。