查询词典 U-magnet

This paper reports the results of highly precise zircon SHRIMP U-Pb dating of quartz albitite in the volcanic-sedimentary series of the Tuolugou cobalt deposit, Golmud, Qinghai. Analyses of eight spots presented 206Pb/238U ages of 455 to 483Ma with a weighted mean age of 468±9Ma, which represents the timing of submarine volcanic exhalation in this area. Therefore, the age of the host rocks of the Tuolugou ore district is redefined as Ordovician, which implies that regionally the main part of the Naij Tal Group should be Early Paleozoic in age.

青海格尔木驼路沟矿区赋矿火山－沉积岩系中的石英钠长石岩样品锆石SHRIMP U-Pb精细测年结果表明，该岩石具有一组8个测点构成的455~483Ma的206Pb/238U年龄数据，加权平均年龄为468Ma±9Ma，应代表本区海底火山喷流作用的时间，因此重新厘定了矿区内含矿岩系的时代为奥陶纪，同时，这一年龄指示区域上纳赤台群主体的时代应为早古生代。

A brass instrument consisting of along cylindrical tube bent upon itself twice,ending in abell-shaped mouth,and having amovable U-shaped slide for producing different pitches.

一种铜管乐器，由弯曲两次的长圆筒形金属管构成，尾部有喇叭形口，有一个可滑动的U形拉管，可发出差别音高的音。

2There are differences between China's best young football coaches in terms of age, seniority, education, marriage, coaches level, nature of work, the nature of work units, regions, eat. In which older and younger age with higher satisfaction, which is into "U" type ;In seniority, the lower academic qualifications, the higher job satisfaction, showing the antigrowth trend. Level in the coaches, the higher the level on the career identity and career development with lower satisfaction, and other dimensioned showed positive growth. In marriage, unmarried outstanding youth football coaches have higher satisfaction in career identity dimensions. In the nature of the work, the coaches satisfaction is higher, but the degree of salary is lower. Nature in the workplace, the youth football coaches in large-scale enterprises outstanding football club are with higher satisfaction. At the district level, the developed coastal regions are with higher job satisfaction, the old industrial base in the northeast have lower job satisfaction in the work environment and salary degrees. regard to remuneration, salaries in 2000-3000or more than 5000 outstanding young football coaches have higher job satisfaction in the current, but salaries in 3000-4000 or 4000-5000 outstanding football coaches, the job satisfaction is slightly lower三、There is significant positive correlation between job satisfaction and job involvement of China's best young football coaches.

其中年龄较大和年龄较小者的满意度较高，满意度成呈&U&型；在教龄方面，工作年限较少的优秀青少年足球教练员的满意度较高；在学历方面，学历越低，工作满意度越高，呈反增长趋势；在教练员级别方面，级别越高者对职业认同和职业发展的满意度较低，其他维度呈正增长；在婚姻方面，未婚的优秀青少年足球教练员有较高的工作满意度，但已婚优秀青少年足球教练员对职业认同维度有较高的满意度；在工作性质方面，主教练的的满意度较高，但在薪资福利维度上的满意度较低；在工作单位性质方面，大型企业足球俱乐部的优秀青少年足球教练员拥有较高的满意度；在地区方面，沿海发达地区的工作满意度水平较高，东北老工业基地的工作满意度水平在工作环境和薪资福利维度的满意度水平较低；在薪酬方面，薪酬在2000-3000和5000以上的优秀青少年足球教练员对目前的工作满意度较高，而薪酬在3000-4000和4000-5000的优秀青少年足球教练员的工作满意度略低。

Several conclusions are drawn from the study. The ore deposit mainly occurs in the lower Cambrian Shuigoukou Formation, which is situated at the limbs of Qingshixia-Yujiatai overturned multiple syncline. The ore-hosted rocks are silicalite and mudstone. The content of SiO2 is high in the rocks of V ore deposit. Silicalites are mainly aphanitic quartz and chalcedony and the barite is sedimentogenic. The correlation between V and Cr, U, Ba is good. The rare earth element distribution patterns show Ce-negative or positive anomaly, obviously Eu positive anomaly and the right dip graphics.

研究结果表明，该区钒矿主要产出于青石峡－余家台倒转复式向斜两翼下寒武统水沟口组下岩段硅质岩夹泥岩的泥岩中，矿体产状与地层产状基本一致；钒矿床中所有岩石都含有较高的SiO2，硅质岩以隐晶质石英和玉髓为主，有沉积成因重晶石；V与Cr、U、Ba相关性好；稀土元素球粒陨石标准化模式具有或正或负的Ce异常和明显的Eu正异常、向右倾的图形。

U.S.S. Atka stands off Crater Hill on McMurdo Sound in mid-March; she kept channels open for evacuation of the last summer residents.

U.S.S。 Atka号在三月中旬驶离麦克默多湾的Crater山，以便为最后的夏季居住者们的撤离保持航道通畅。

U.S.S. Atka stands off Crater Hill on McMurdo Sound in mid-March; she kept channels open for evacuation of the last summer residents.

U.S.S。 Atka号在三月中旬驶离麦克默多湾的Crater Hill；她为去年夏季居住者的撤离保持航道畅通。

Keywords: Ventricular outflow tract; slow response autorhythmic cell; autorhythmicity; U wave of ECG

中文关键词：心室流出道；慢反应自律细胞；自律性；心电图U波

Methods There were four characteristics compared to the conventional dacryocystorhinostomy:(1) need not cut inner canthal ligament;(2) two U-shape petals in the lacrimal sac and nasal mucosa,(3) need not suture between the two petals,(4) did not placed the tube during the operation or after the operation.

在传统的泪囊鼻腔吻合术的基础上进行了4方面改良：内眦韧带不断离；做泪囊和鼻粘膜两个&U&型瓣，两瓣上面填充可止血和吸收的明胶海绵；两瓣间无需缝合；术中及术后不放置引流管。

Cappy McGarr, managing partner of U.S.

私募股权公司美国可再生能源公司U.S。

This dissertation was focused on the research about the formation and evolution of NQB from the Late Triassic to the early middle Epoch of Jurassic Period, including integrated analyzing the characteristic of the key stratigraphic surfaces, the time of the key stratigraphy, regional rock straigraphy, biostratigraphy and chronostratigraphy, sedimentary system and depositional facies. On basis of these analysis, a tectonic evolution model have been established for NQB during from the Late Triassic to the early middle Epoch of Jurassic Period.1. After the systematic surface analysis about main stratigraphy units, we found that:(1) the bottom of Xiaochaka formation was comformity with the middle Triassic in the basin, and in the north margin it was deposited and overlapped on the different period stratigraphy before Triassic.(2) The top surface of Xiaochaka formation developed regionally karst and paleo-karst breccia, and was uncomformity with Nadigangri Formation, these things suggest that NQB in Xiaochaka depositing stage was developed from middle Triassic basin, and then an extensive regression occurred, the deposition was over and erosion come into being.(3) The lithologic assemblage, geochemistry, mixed fossils, and stratigraphy overlapping characteristic of Quemocuo Formation in early middle Jurassic indicted that the uncomformity surface was an extension-unconformity.2. Integrated analysis about stratigraphy division and correlation indicted that:(1) the paleontologic assemblage of Xiaochaka formation show its time was Carian -Norian stage of late Triassic. According to it was overlapped by late Triassic Nadigangri Formation, so Xiaochaka formation should be Carian - early Norian stage.(2) the SHRIMP Zircon U-Pb age of Nadigangri formation volcanic rocks wear vary form 216 to 205 Ma, so its time should be Norian, but maybe extended into Rhaetian Stage.(3) The age of its bottom volcanic rocks, the fossil assemblages of its middle and upper members and overlapped by lower Jurassic, indicted the age of Riganpeicuo Formation was Norian - Rhaetian stage. And the same time, the volcanic rocks geochemistry of Nadigangri and Riganpeicuo formation both reflected that they wear formed in rift tectonic settings. The lower lithologic and surface characteristic, fossil assemblages and its upper maybe was conformity with lower Jurassic, all reflected that the age of Tumengela Formation in Tumen area should be Norian - Rhaetian stage.

论文对晚三叠世—中侏罗世早期盆地的形成与演化开展了研究，包括关键地层界面特征分析、关键地层时代归属分析、区域岩石地层、生物地层和年代地层的综合对比分析、区域沉积体系与沉积相分析、岩相古地理分析，最终建立晚三叠世—中侏罗世早期羌塘盆沉积—构造动力演化模式。1、系统的对各地层单元的界面分析发现：(1)肖茶卡组底界在盆地内部与中三叠统整合关系，在盆地北缘为沉积超覆于不同时代的前三叠系之上：(2)肖茶卡组顶界面发育古岩溶角砾岩，与上覆那底岗日组为岩溶不整合接触，说明肖茶卡组沉积时期的羌塘盆地是在早中三叠世的盆地基础发展起来的，后期出现了广泛的海退事件，使盆地结束沉积并遭受风化剥蚀作用；(3)中侏罗统雀莫错组的岩性组合特征、岩石化学特征、古生物化石混积和地层的沉积超覆现象均表现出裂陷环境下形成的伸展不整合面的特征。2、综合地层划分与对比分析认为：(1)肖茶卡组古生物化石组合反映其时代为晚三叠世卡尼期—若利期，根据其上被上三叠统那底岗日组不整合覆盖，将其时代厘定为卡尼期—若利期早期；(2)那底岗日组火山岩SHRIMP锆石U-Pb年龄在216～205 Ma之间，其时代主要为若利期，可能包含有瑞替期：(3)日干配错组底部火山岩的年龄、中上部化石组合及其被下侏罗统整合覆盖，综合反映的时代为晚三叠世若利期—瑞替期，而且那底岗日组火山岩和日干配错组火山岩的地球化学成分分析反映两者均为引张构造背景下的产物；土门地区的土门各拉组的下部岩性及界面特征、化石组合和上部可能被下侏罗统整合覆盖，综合反映其时代为若利期—若利期。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。